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Urea is a powerful protein denaturant via both direct and indirect mechanisms . A potent emollient and keratolytic agent . Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function . Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Urea- 13C is the 13C labelled urea. The Urea- 13C breath test ( 13C-UBT) is one of the best methods for the diagnosis of Helicobacter pylori infection[1].
Urea- 13C, 15N2 is the 13C and 15N labeled Urea[1]. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Urea-d4 is the deuterium labeled Urea[1]. Urea is a powerful protein denaturant via both direct and indirect mechanisms[2]. A potent emollient and keratolytic agent[3]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[4]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Urea- 15N2 is the 15N-labeled Urea. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Urease, Jack bean is derived from jack bean and Catalyzes hydrolysis of urea to carbon dioxide and ammonia. Urease, Jack bean is useful in the determination of urea in body fluids.
Diazolidinyl urea, a broad spectrum preservative, is a formaldehyde-releasing compound that releases formaldehyde through its decomposition. Diazolidinyl urea is effective against most contaminating microorganisms, especially Pseudomonas .
Urea (Standard) is the analytical standard of Urea. This product is intended for research and analytical applications. Urea is a powerful protein denaturant via both direct and indirect mechanisms . A potent emollient and keratolytic agent . Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function . Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Imidazolidinyl urea (Standard) is the analytical standard of Imidazolidinyl urea. This product is intended for research and analytical applications. Imidazolidinyl urea is an antibacterial preservative used in cosmetics as a formaldehyde releaser.
Imidacloprid-urea is a metabolite of Imidacloprid. Imidacloprid is an effective and widely used neonicotinoid pesticide to control pests of cereals, vegetables, tea and cotton. Imidacloprid-urea can occupy or block adsorption sites of imidacloprid on soil, potentially affecting the fate, transport, and bioavailability of imidacloprid in the environment .
Glu-urea-Glu-NHS ester (compound 21) is an activated N-hydroxysuccinamide (NHS) ester of Glu-urea-Glu which can be used as a pharmacophore for linking with prostate specific membrane antigen (PSMA) inhibitors .
HYNIC-iPSMA TFA is a ligand for molecular imaging of tumors. Hynic-ipsma consists of two components: HYNIC (6-hydrazinonicotinamide) and iPSMA (Inhibitor of Prostate-Specific Membrane Antigen). HYNIC is a compound used to attach radioactive isotopes to targeted molecules. iPSMA is a specific inhibitor used to inhibit prostate-specific membrane antigen (PSMA). 68GA-labeled iPSMA has been used to detect prostate cancer by PET imaging. The further 99mTc-EDDA/HYNIC-iPSMA TFA has excellent specificity and sensitivity .
HYNIC-PSMA is a ligand for molecular imaging of tumors. Hynic-psma consists of two components: HYNIC (6-hydrazinonicotinamide) and PSMA (Prostate-Specific Membrane Antigen). HYNIC is a compound used to attach radioactive isotopes to targeted molecules, such as 188Re-HYNIC-PSMA. PSMA is a membrane antigen that is specifically expressed on the surface of prostate cancer cells. HYNIC-PSMA can be used in prostate cancer research .
HYNIC-iPSMA is a ligand for molecular imaging of tumors. Hynic-ipsma consists of two components: HYNIC (6-hydrazinonicotinamide) and iPSMA (Inhibitor of Prostate-Specific Membrane Antigen). HYNIC is a compound used to attach radioactive isotopes to targeted molecules. iPSMA is a specific inhibitor used to inhibit prostate-specific membrane antigen (PSMA). 68GA-labeled iPSMA has been used to detect prostate cancer by PET imaging. The further 99mTc-EDDA/HYNIC-iPSMA has excellent specificity and sensitivity .
N,N-Dimethylamidino Urea (N-Carbonylguanidine) is an intermediate in the electrochemical oxidation of Metformin (HY-B0627). Metformin can be used in the study of type 2 diabetes. N,N-Dimethylamidino Urea can be used as a marker to study the metabolic pathway of metformin in vivo .
C6 Urea Ceramide (C6 Ceramide (d18:1/6:0) Urea; Cer(d18:1/6:0) Urea) is an inhibitor of neutral ceramidase. It increases total ceramide levels in wild-type mouse embryonic fibroblasts (MEFs) and HT-29 colon cancer cells, but not in MEFs lacking neutral ceramidase. At concentrations of 5 and 10 μM, it inhibits proliferation of HT-29 cells and induces apoptosis and autophagy, but not in noncancerous RIE-1 cells. C6 Urea Ceramide decreases total β-catenin, increases phosphorylated β-catenin, and induces colocalization of β-catenin with the 20S proteasome in HT-29 and HCT116 cells, but not in RIE-1 cells. When administered at doses of 1.25, 2.5, and 5 mg/kg for five days, it reduces tumor growth and increases C16, C18, C20, and C24 ceramide levels in tumor tissues in the HT-29 mouse xenograft model.
Propargyl-PEG2-urea-C3-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs . Propargyl-PEG2-urea-C3-triethoxysilane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
22-((4-Methoxyphenyl)urea-1-yl)-22-deoxypleuromutilin (compound 6n) is an antibacterial pleuromutilin derivative against Gram-positive pathogens (GPPs) and Mycoplasma pneumoniae .
Mefruside is an orally active diuretic and has a mild hypotensive effect. Mefruside inhibits the synthesis of urea in an isolated rat liver perfusion model. Mefruside can be used in studies of oedema and hypertension .
TCO-PEG2-Sulfo-NHS ester-EDC Urea is a click chemistry reagent containing an azide group. TCO-PEG2-Sulfo-NHS ester is a PEG linker containing a TCO moiety and a sulfo-NHS ester moiety. The sulfo group makes this molecule soluble in waqueous buffer. This reagent can be used to label antibodies, proteins and other primary amine-containing macromolecules with TCO moiety. Reagent grade, for research use only . TCO-PEG2-Sulfo-NHS ester-EDC Urea is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.
L-Ornithine hydrochloride is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine hydrochloride shows nephroprotective .
L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective .
L-Ornithine (Standard) is the analytical standard of L-Ornithine. This product is intended for research and analytical applications. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective .
Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats .
Orotic acid (zinc), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid (zinc) is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid (zinc) can induce hepatic steatosis and hepatomegaly in rats .
SR7826 is a class of bis-aryl urea derived potent, selective and orally active LIM kinase (LIMK) inhibitor with an IC50 of 43 nM for LIMK1. SR7826 is >100-fold more selective for LIMK1 than ROCK and JNK kinases .
STING agonist-11 (Compound 92) is a potent small molecule cyclic urea activator of STING with EC50 of 18 nM. Activation of STING is a highly promising approach in immunotherapy .
STING agonist-10 (Compound 91) is a potent small molecule cyclic urea activator of STING with the EC50 of 2600 nM. Activation of STING is a highly promising approach in immunotherapy .
UT-B-IN-1 (UTBINH-14) is a reversible, competitive and selective urea transporter-B (UT-B) inhibitor with IC50 values of 10 and 25 nM for human and mouse UT-B, respectively. UT-B-IN-1 shows low toxicity and high selectivity for UT-B over UT-A isoforms. UT-B-IN-1 increases urine output and reduces urine osmolality of mice. UT-B-IN-1 can be used for diuretic mechanism research .
Oxaloacetic acid (2-Oxosuccinic acid) is a metabolic intermediate involved in several ways, such as citric acid cycle, gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, and fatty acid synthesis, whereby Oxaloacetic acid facilitates the clearance of reactive oxygen species (ROS) and improves mitochondrial function .
Arginase, Microorganism (L-Arginine amidinase) is an enzyme of the urea cycle. Arginase catalyzes the hydrolysis of L-arginine to L-ornithine and urea .
sEH inhibitor-14 (compound 33) is a benzoxazolone-5-urea analogue. In addition, sEH inhibitor-14 is a soluble Epoxide Hydrolase (sEH) inhibitor (IC50=0.39 nM) .
Vipivotide tetraxetan Ligand-Linker Conjugate (PSMA-617 Ligand-Linker Conjugate) is a complex composed of pharmacophore group Glutamate-urea-Lysine peptide coupling linker, which can be used to synthesize Vipivotide tetraxetan (PSMA-617). Glutamate-urea-Lysine selectively binds to prostate-specific membrane antigen (PSMA) .
N-Butylthiophosphoric triamide (NBPT) is a potent urease inhibitor. Butylthiophosphoric triamide inhibits nitrification and reduces the conversion of urea to NH3 gas .
Creatinase, Actinobacteria (Creatine amidohydrolase) is a hydrolase that catalyzes the hydrolysis of creatine into sarcosine and urea, and plays an important role in the enzymatic determination of creatinine concentration .
Vipivotide tetraxetan (PSMA-617) is a high potent prostate-specific membrane antigen (PSMA) inhibitor, with a Ki of 0.37 nM. Vipivotide tetraxetan (PSMA-617) is designed consisting of three components: the pharmacophore Glutamate-urea-Lysine, the chelator DOTA able to complex both 68Ga or 177Lu, and a linker connecting these two entities. Glutamate-urea-Lysine is the selective pharmacophore to bind to prostate specific membrane antigen.
L-Homocitrulline is metabolized to homoarginine through homoargininosuccinate via the urea cycle pathway and its metabolic abnormality could lead to Lysinuric Protein Intolerance (LPI).
DUPA, belongs to a class of glutamate ureas, is used as the targeting moiety in agent conjugate to selectively deliver cytotoxic agents to prostate cancer cells .
L-Ornithine-d6 (hydrochloride) is the deuterium labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
L-Ornithine-d2 (hydrochloride) is the deuterium labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
L-Ornithine-d7 (hydrochloride) is the deuterium labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
Semicarbazide (hydrochloride) (Standard) is the analytical standard of Semicarbazide (hydrochloride). This product is intended for research and analytical applications. Semicarbazide hydrochloride, a derivative of urea, possesses antiviral, antiinfective and antineoplastic through binding to copper or iron in cells .
L-Ornithine- 15N2 (hydrochloride) is the 15N-labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
STAT3-IN-7 is a Sorafenib analogue and potently inhibits the phosphorylation of STAT3. STAT3-IN-7 induces cell apoptosis through SHP-1 dependent STAT3 inactivation. STAT3-IN-7 does not inhibit kinase activity and has anticancer effects .
L-Homocitrulline-d3 is the deuterium labeled L-Homocitrulline. L-Homocitrulline is metabolized to homoarginine through homoargininosuccinate via the urea cycle pathway and its metabolic abnormality could lead to Lysinuric Protein Intolerance (LPI).
L-Ornithine-1,2- 13C2 (hydrochloride) is the 13C-labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
Creatine amidinohydrolase, microorganism is a hydrolytic enzyme that catalyzes the hydrolysis of creatine into creatinine and urea, playing a crucial role in the measurement of creatinine concentration. Creatine amidinohydrolase, microorganism can be used in the development of biosensors for measuring serum creatinine levels .
AU1235, an adamantyl urea, is a potent MmpL3 inhibitor. The Mycobacterium tuberculosis protein MmpL3 performs an essential role in cell wall synthesis, since it effects the transport of trehalose monomycolates across the inner membrane .
L-Ornithine-1,2,3,4,5- 13C5 (hydrochloride) is the 13C-labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
Carbamoyl phosphate dilithium salt is an antisickling agent and plays a significant role in the urea cycle. Carbamoyl phosphate dilithium salt carbamylates the amino-terminal valine residues of hemoglobin S in erythrocytes, which interferes with the sickling phenomenon. Carbamoyl phosphate dilithium salt exhibits toxicity due to the lithium cation .
Oxaloacetic acid- 13C4 is the 13C-labeled Oxaloacetic acid. Oxaloacetic acid (2-Oxosuccinic acid) is a metabolic intermediate involved in several ways, such as citric acid cycle, gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, and fatty acid synthesis[1][2][3].
PU-48 is a potent urea transporters A (UT-A) inhibitor (IC50=0.32 μM). PU-48 has a good diuretic effect in mouse models, and shows little or no cytotoxicity. PU-48 has the potential to be developed as a diuretic .
LC kinetic stabilizer-1 (compound 21) is a potent and selective amyloidogenic immunoglobulin light chain kinetic stabilizer with EC50s of 140 and 74.1 nM for WIL-FL * and WIL-FL * T46L/F49Y, respectively. WIL-FL is an amyloidogenic FL LC dimer .
Creatininase, Microorganism (Creatinine amidohydrolase; CAH), namely creatinine amidohydrolase, from Pseudomonas putida, is a homohexameric enzyme commonly used in biochemical research. Creatininase acts on carbon-nitrogen bonds other than peptide bonds, and can catalyze the hydrolysis of creatinine to creatine, which can then be metabolized by creatinase to urea and sarcosine .
Proteinase K (Protease K) is a nonspecific serine protease that is useful for general digestion of proteins. Proteinase K is active in the presence of SDS or urea and over a wide range of pH (4-12), salt concentrations, and temperatures. Proteinase K can be use for promoting methods of viral nucleic acid extraction, and detection .
Argininosuccinic acid participates in the fourth step of the urea cycle, with being cleaved to arginine and fumaric acid by argininosuccinic acid lyase (ASL). Argininosuccinic acid reduces reduced glutathione (GSH) level, and increases the production of reactive oxygen species in cerebral cortex and striatum. Argininosuccinic acid causes lipid peroxidation and protein oxidation, and induces oxidative stress in the developing rat brain .
Glutamate dehydrogenase NAD(P) (GLDH) can be found in hepatocytes, renal tissue, brain, muscle, and intestinal cells. Glutamate dehydrogenase NAD(P) is often used in biochemical studies. Glutamate dehydrogenase is a mitochondrial enzyme, it catalyzes the reversible oxidative deamination of glutamate to α-ketoglutarate (α-KG) as part of the urea cycle .
Argininosuccinic acid disodium participates in the fourth step of the urea cycle and is cleaved into arginine and fumarate by argininosuccinate lyase (ASL). Argininosuccinic acid disodium reduces reduced glutathione (GSH) concentrations and increases reactive oxygen species production in the cerebral cortex and striatum. Argininosuccinic acid disodium causes lipid peroxidation and protein oxidation and also induces oxidative stress in the developing rat brain .
Orotic acid potassium (Vitamin B13 potassium) is a precursor of pyrimidine bases and is involved in the synthesis of DNA and RNA. Orotic acid potassium stimulates the growth of animals, plants and microorganisms, participates in carbohydrate metabolism, and is necessary for the growth and life activities of organisms. Orotic acid potassium is a measurement indicator in routine newborn screening for urea cycle abnormalities. Orotic acid potassium can cause hepatic steatosis and hepatomegaly in rats .
Orotic acid (Standard) is the analytical standard of Orotic acid. This product is intended for research and analytical applications. Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats .
JX237 is an inhibitor of the epithelial neutral amino acid transporter B 0AT1 (SLC6A19) with an IC50 value of 31 nM. JX237 is the main transporter for the absorption of neutral amino acids in the intestines and their reabsorption in the kidneys. By inhibiting B 0AT1, JX237 can help normalize elevated plasma amino acids in rare amino acid metabolic disorders like phenylketonuria and urea cycle disorders .
Thiosemicarbazide is a vitamin B6 antagonist with anti-acne activity. Thiosemicarbazide is also a well-known source in the synthesis of heterocycles, and its derivatives have potential anticancer activity. Thiosemicarbazide (TSC: HL1) reacts with metal salts, urea (U), to prepare Co(II) and Cu(I) metal complexes. Thiosemicarbazide is also used in the fields of media communications and optical storage, and in the spectrophotometric detection of metals .
Orotic acid- 13C, 15N2 (monohydrate) is the 13C and 15N labeled Orotic acid[1]. Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats[2][3][4].
Tyrosinase-IN-13 (compound 3c), a derivative of Flurbiprofen (HY-10582), is a potent, non-competitive tyrosinase inhibitor (IC50=68 μM; Ki=36.3 μM). Tyrosinase-IN-13 is cytotoxic against hepatocellular carcinoma (HepG2), colorectal cancer (HT-29), and melanoma (B16F10) .
Creatinase (Recombinant) is a hydrolase responsible for catalyzing the hydrolysis of creatine (HY-W010388) into sarcosine (HY-101037) and urea (HY-Y0271). Creatinase (Recombinant) can be used in conjunction with creatinine deiminase (HY-P2838) and sarcosine oxidase (HY-P2861) in an enzyme cascade reaction to measure creatinine (HY-B0504) levels in blood and urine. Creatinase (Recombinant) is the rate-limiting enzyme in this enzymatic cascade, and the enzymatic quantification of creatinine is an important method for evaluating kidney function .
NAD synthetase is responsible for the final step in the synthesis of nicotinamide adenine dinucleotide (NAD). The Km values for NAD, ATP, and ammonia of NAD synthetase from Escherichia coli are 200 μM, 11 μM, and 0.65 μM, respectively, while the Km values for NAD, ATP, and ammonia of NAD synthetase from yeast are 170 μM, 190 μM, and 64 μM, respectively. NAD synthetase can be used for enzymatic assays to determine ATP, ammonia, urea, or creatinine, and is also suitable for enzymatic cycling methods. Additionally, NAD synthetase holds potential for research into metabolic diseases, cancer, aging, and neurodegenerative diseases .
SPR7 (compound 7) is a potent and selective rhodesain inhibitor, with a Ki of 0.51 nM. SPR7 shows antiparasitic activity against T. b. brucei, with an EC50 of 1.65 μM .
NH2-NODAGA is a NODAGA-type metal chelator that can bind to radionuclides to prepare radionuclide conjugates (RDCs). NH2-NODAGA can react with diethyl squarate in 0.5M phosphate buffer (room temperature, 2 h, pH 7-7.5) to obtain NODAGA.SA. NODAGA.SA can target L-lysine urea-L-glutamate (KuE), which is a key structure of prostate-specific membrane antigen (PSMA). NODAGA.SA.KuE can bind [68]Ga and can be used for PET examination of NMRInu/nu nude mice bearing LNCaP tumors.
DMP 323 is a potent, nonpeptide cyclic urea inhibitor of HIV protease, effective against both HIV type 1 and type 2. Designed using structural information and database searching, it competitively inhibits the cleavage of both peptide and HIV-1 gag polyprotein substrates. DMP 323 shows comparable potency to other highly effective HIV protease inhibitors like A-80987 and Ro-31-8959. Importantly, its efficacy against HIV protease remains unaffected by human plasma or serum, suggesting low affinity for plasma proteins. Furthermore, DMP 323 demonstrates minimal inhibition of various mammalian proteases at concentrations much higher than those needed for HIV protease inhibition, highlighting its specificity for viral targets .
ATX inhibitor 12 (compound 20) is an orally active and potent ATX (autotaxin) inhibitor, with an IC50 of 1.72 nM. ATX inhibitor 12 effectively alleviates lung structural damage with fewer fibrotic lesions at an oral dose of 60 mg/kg in C57Bl/6J mice. ATX inhibitor 12 can be uesd for idiopathic pulmonary fibrosis (IPF) research .
I-A09 and its derivatives, specifically 1,2,3-triazole-adamantylacetamide hybrids (5a–u), exhibit significant antitubercular activity. These hybrids were synthesized using copper-catalyzed click chemistry, combining bioactive fragments from antitubercular I-A09 and substituted adamantyl urea. The compound N-(1-adamantyl)-2-azido acetamide was reacted with various alkyl/aryl acetylenes to produce new analogues. Among them, N-(1-adamantan-1-yl)-2-(4-(phenanthren-2-yl)-1H-1,2,3-triazol-1-yl)acetamide (5t) showed the most promise with a minimum inhibitory concentration (MIC) of 3.12 μg/mL against Mycobacterium tuberculosis H37Rv, and a selectivity index greater than 15 .
DCFBC is a prostate-specific membrane antigen (PSMA) inhibitor for small animal positron emission tomography (PET) imaging. [18F]DCFBC was prepared by reacting fluorine-18 labeled phenyl bromide with the precursor (S)-2-[3-[(R)-1-carboxy-2-thiolethyl]urea]-glutaric acid in ammonia-saturated methanol at 60°C for 10 min and then purified by C-18 reversed-phase HPLC. [18F]DCFBC was injected via the tail vein in severe combined immunodeficient mice for in vitro biodistribution or imaging. For in vitro biodistribution studies, mice were sacrificed at 5, 15, 30, 60, and 120 min after injection, and tumors, blood, and major organs were collected, weighed, and radioactivity was counted. Imaging was performed using a GE eXploreVista small animal PET scanner, collecting 12 consecutive 10-min frames. Results showed that the radiochemical yield of [18F]DCFBC averaged 16±6% (n=8) from 4-[18F]fluorophenyl bromide. Specific radioactivity ranged from 13 to 133 GBq/Amol (350-3600 Curie/mmol) with an average of 52 GBq/Amol (1392 Curie/mmol; n=6). Biodistribution and imaging studies showed high uptake of [18F]DCFBC in PIP tumors and almost no uptake in FLU tumors. High radiopharmaceutical uptake was also seen in the kidney and bladder; however, radioactivity washout from these organs was faster than from the PIP tumors. Maximum PIP tumor uptake was reached at 60 min post-injection at 8.16±2.55% injected dose/g and decreased to 4.69±0.89 at 120 min post-injection. The PIP tumor-to-muscle ratio was 20 at 120 min post-injection. Based on mouse biodistribution, the dose-limiting organ was the kidney (estimated human absorbed dose: 0.05 mGy/MBq; 0.2 rad/mCi). Conclusions: [18F]DCFBC localizes specifically to PSMA+ expressing tumors in mice and is suitable for small animal PET imaging. This novel radiopharmaceutical is an attractive candidate for further study in PET imaging of prostate cancer.
Orotic acid potassium (Vitamin B13 potassium) is a precursor of pyrimidine bases and is involved in the synthesis of DNA and RNA. Orotic acid potassium stimulates the growth of animals, plants and microorganisms, participates in carbohydrate metabolism, and is necessary for the growth and life activities of organisms. Orotic acid potassium is a measurement indicator in routine newborn screening for urea cycle abnormalities. Orotic acid potassium can cause hepatic steatosis and hepatomegaly in rats .
HYNIC-iPSMA TFA is a ligand for molecular imaging of tumors. Hynic-ipsma consists of two components: HYNIC (6-hydrazinonicotinamide) and iPSMA (Inhibitor of Prostate-Specific Membrane Antigen). HYNIC is a compound used to attach radioactive isotopes to targeted molecules. iPSMA is a specific inhibitor used to inhibit prostate-specific membrane antigen (PSMA). 68GA-labeled iPSMA has been used to detect prostate cancer by PET imaging. The further 99mTc-EDDA/HYNIC-iPSMA TFA has excellent specificity and sensitivity .
HYNIC-PSMA is a ligand for molecular imaging of tumors. Hynic-psma consists of two components: HYNIC (6-hydrazinonicotinamide) and PSMA (Prostate-Specific Membrane Antigen). HYNIC is a compound used to attach radioactive isotopes to targeted molecules, such as 188Re-HYNIC-PSMA. PSMA is a membrane antigen that is specifically expressed on the surface of prostate cancer cells. HYNIC-PSMA can be used in prostate cancer research .
S-(2-Carboxyethyl)-L-cysteine (S-Carboxyethylcysteine) is a non-protein (modified) sulfur amino acid. S-(2-Carboxyethyl)-L-cysteine is present in Acacia seed. S-(2-Carboxyethyl)-L-cysteine can affect the seed’s protein use in rats. S-(2-Carboxyethyl)-L-cysteine suppresses the methionine-induced growth rate, and has a negative effect on the plasma amino acid levels in rats .
HYNIC-iPSMA is a ligand for molecular imaging of tumors. Hynic-ipsma consists of two components: HYNIC (6-hydrazinonicotinamide) and iPSMA (Inhibitor of Prostate-Specific Membrane Antigen). HYNIC is a compound used to attach radioactive isotopes to targeted molecules. iPSMA is a specific inhibitor used to inhibit prostate-specific membrane antigen (PSMA). 68GA-labeled iPSMA has been used to detect prostate cancer by PET imaging. The further 99mTc-EDDA/HYNIC-iPSMA has excellent specificity and sensitivity .
Urea is a powerful protein denaturant via both direct and indirect mechanisms . A potent emollient and keratolytic agent . Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function . Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
L-Ornithine hydrochloride is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine hydrochloride shows nephroprotective .
L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective .
Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats .
Orotic acid (zinc), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid (zinc) is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid (zinc) can induce hepatic steatosis and hepatomegaly in rats .
Oxaloacetic acid (2-Oxosuccinic acid) is a metabolic intermediate involved in several ways, such as citric acid cycle, gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, and fatty acid synthesis, whereby Oxaloacetic acid facilitates the clearance of reactive oxygen species (ROS) and improves mitochondrial function .
L-Homocitrulline is metabolized to homoarginine through homoargininosuccinate via the urea cycle pathway and its metabolic abnormality could lead to Lysinuric Protein Intolerance (LPI).
Urea (Standard) is the analytical standard of Urea. This product is intended for research and analytical applications. Urea is a powerful protein denaturant via both direct and indirect mechanisms . A potent emollient and keratolytic agent . Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function . Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
L-Ornithine (Standard) is the analytical standard of L-Ornithine. This product is intended for research and analytical applications. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective .
Argininosuccinic acid participates in the fourth step of the urea cycle, with being cleaved to arginine and fumaric acid by argininosuccinic acid lyase (ASL). Argininosuccinic acid reduces reduced glutathione (GSH) level, and increases the production of reactive oxygen species in cerebral cortex and striatum. Argininosuccinic acid causes lipid peroxidation and protein oxidation, and induces oxidative stress in the developing rat brain .
Argininosuccinic acid disodium participates in the fourth step of the urea cycle and is cleaved into arginine and fumarate by argininosuccinate lyase (ASL). Argininosuccinic acid disodium reduces reduced glutathione (GSH) concentrations and increases reactive oxygen species production in the cerebral cortex and striatum. Argininosuccinic acid disodium causes lipid peroxidation and protein oxidation and also induces oxidative stress in the developing rat brain .
Orotic acid (Standard) is the analytical standard of Orotic acid. This product is intended for research and analytical applications. Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats .
SLC14A1 Protein plays a pivotal role in cellular processes, mediating urea transport across erythrocyte and renal inner medullary collecting duct membranes. It is crucial for the urinary concentrating mechanism and regulates water transport in erythrocytes. With a dual role in urea transport, SLC14A1 maintains cellular osmotic balance and contributes to physiological processes associated with urinary concentration, highlighting its significance. SLC14A1 Protein, Human (Sf9, His, MBP, FLAG) is the recombinant human-derived SLC14A1 protein, expressed by Sf9 insect cells , with N-MBP, C-Flag, N-8*His labeled tag. The total length of SLC14A1 Protein, Human (Sf9, His, MBP, FLAG) is 388 a.a., .
Urea- 13C is the 13C labelled urea. The Urea- 13C breath test ( 13C-UBT) is one of the best methods for the diagnosis of Helicobacter pylori infection[1].
Urea- 13C, 15N2 is the 13C and 15N labeled Urea[1]. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Urea-d4 is the deuterium labeled Urea[1]. Urea is a powerful protein denaturant via both direct and indirect mechanisms[2]. A potent emollient and keratolytic agent[3]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[4]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Urea- 15N2 is the 15N-labeled Urea. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
L-Ornithine-d6 (hydrochloride) is the deuterium labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
L-Ornithine-d2 (hydrochloride) is the deuterium labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
L-Ornithine-d7 (hydrochloride) is the deuterium labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
L-Ornithine- 15N2 (hydrochloride) is the 15N-labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
L-Homocitrulline-d3 is the deuterium labeled L-Homocitrulline. L-Homocitrulline is metabolized to homoarginine through homoargininosuccinate via the urea cycle pathway and its metabolic abnormality could lead to Lysinuric Protein Intolerance (LPI).
L-Ornithine-1,2- 13C2 (hydrochloride) is the 13C-labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
L-Ornithine-1,2,3,4,5- 13C5 (hydrochloride) is the 13C-labeled L-Ornithine hydrochloride. L-Ornithine hydrochloride is a free amino acid that plays a central role in the urea cycle and is also important for the disposal of excess nitrogen.
Oxaloacetic acid- 13C4 is the 13C-labeled Oxaloacetic acid. Oxaloacetic acid (2-Oxosuccinic acid) is a metabolic intermediate involved in several ways, such as citric acid cycle, gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, and fatty acid synthesis[1][2][3].
Orotic acid- 13C, 15N2 (monohydrate) is the 13C and 15N labeled Orotic acid[1]. Orotic acid (6-Carboxyuracil), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid can induce hepatic steatosis and hepatomegaly in rats[2][3][4].
Propargyl-PEG2-urea-C3-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs . Propargyl-PEG2-urea-C3-triethoxysilane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
TCO-PEG2-Sulfo-NHS ester-EDC Urea is a click chemistry reagent containing an azide group. TCO-PEG2-Sulfo-NHS ester is a PEG linker containing a TCO moiety and a sulfo-NHS ester moiety. The sulfo group makes this molecule soluble in waqueous buffer. This reagent can be used to label antibodies, proteins and other primary amine-containing macromolecules with TCO moiety. Reagent grade, for research use only . TCO-PEG2-Sulfo-NHS ester-EDC Urea is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.
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