2. Reference Standards
  3. Natural Product Standards
  4. Amino acids

Amino acids

Amino acids (40):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-N0390R
    L-Glutamine (standard) 56-85-9 ≥98%
    L-Glutamine (Standard) is the analytical standard of L-Glutamine. This product is intended for research and analytical applications. L-Glutamine (L-Glutamic acid 5-amide) is a non-essential amino acid present abundantly throughout the body and involved in many metabolic processes. L-Glutamine provides a source of carbons for oxidation in some cells.
    L-Glutamine (standard)
  • HY-14608R
    L-Glutamic acid (Standard) 56-86-0 ≥98%
    L-Glutamic acid (Standard) is the analytical standard of L-Glutamic acid. This product is intended for research and analytical applications. L-Glutamic acid is an excitatory amino acid neurotransmitter that acts as an agonist for all subtypes of glutamate receptors (metabolic rhodophylline, NMDA, and AMPA). L-Glutamic acid has an agonist effect on the release of DA from dopaminergic nerve endings. L-Glutamic acid can be used in the study of neurological diseases. IC50 & Target:DA. In Vitro: L-Glutamic acid (120, 500, 750, 1000 mg/dL) can reduce the harmful effect of lithium on the embryonic development of Xenopus Xenopus.
    L-Glutamic acid (2, 5, 10, 20 mM, 24-48 h) can induce neuroexcitotoxicity in neuroblastoma.
    In Vivo: L-Glutamic acid (3 g/kg, subcutaneous injection) can promote excitotoxic degeneration of retinal ganglion cells in mice.
    L-Glutamic acid (750 mg/kg, intraperitoneal injection) can reduce and inhibit oxidative stress induced by chlorpyrifos (CPF) in rats.
    L-Glutamic acid (Standard)
  • HY-B1716R
    L-5-Hydroxytryptophan (Standard) 4350-09-8 ≥98%
    L-5-Hydroxytryptophan (Standard) is the analytical standard of L-5-Hydroxytryptophan. This product is intended for research and analytical applications. L-5-Hydroxytryptophan (L-5-HTP), a naturally occurring amino acid and a dietary supplement for use as an antidepressant, appetite suppressant, and sleep aid, is the immediate precursor of the neurotransmitter serotonin and a reserpine antagonist. L-5-Hydroxytryptophan (L-5-HTP) is used to treat fibromyalgia, myoclonus, migraine, and cerebellar ataxia.
    L-5-Hydroxytryptophan (Standard)
  • HY-N0455R
    L-Arginine (Standard) 74-79-3 ≥98%
    L-Arginine (Standard) is the analytical standard of L-Arginine. This product is intended for research and analytical applications. L-Arginine ((S)-(+)-Arginine) is the substrate for the endothelial nitric oxide synthase (eNOS) to generate NO. L-Arginine is transported into vascular smooth muscle cells by the cationic amino acid transporter family of proteins where it is metabolized to nitric oxide (NO), polyamines, or L-proline. L-Arginine is a potent vasodilator, and can be used to induce experimental acute pancreatitis.
    L-Arginine (Standard)
  • HY-N0666R
    L-Aspartic acid (Standard) 56-84-8 ≥98%
    L-Aspartic acid (Standard) is the analytical standard of L-Aspartic acid. This product is intended for research and analytical applications. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly.
    L-Aspartic acid (Standard)
  • HY-N0394R
    L-Cystine (Standard) 56-89-3 ≥98%
    L-Cystine (Standard) is the analytical standard of L-Cystine. This product is intended for research and analytical applications. L-Cystine, the extracellular form of L-Cysteine (HY-Y0337), is a nutritionally dispensable semiessential sulfur-containing amino acid, occurring in proteins of plants and animals. L-Cystine induces Nrf2 protein elevation in a Keap1 (HY-P75897)-dependent manner and activates Nrf2 transcription factor. L-cystine can elicit cytoprotection by reducing ROS generation and protecting against oxidant- or doxorubicin-induced apoptosis. The reduced reabsorption of L-Cystine in renal tubules and its poor solubility in urine are the important causes of cystine precipitation and cystine crystal formation eventually leading to kidney stones. L-Cystine combined with L-theanine (HY-15121) enhances the production of antigen-specific IgG by increasing glutathione (GSH) levels and T helper 2 (Th2) mediated responses in mice. L-Cystine is promising for research of cystinuria and cystinosis
    L-Cystine (Standard)
  • HY-N0717R
    L-Valine (Standard) 72-18-4 ≥98%
    L-Valine (Standard) is the analytical standard of L-Valine. This product is intended for research and analytical applications. L-Valine (Valine) is a new nonlinear semiorganic material.
    L-Valine (Standard)
  • HY-Y0252R
    L-Proline (Standard) 147-85-3 ≥98%
    L-Proline (Standard) is the analytical standard of L-Proline. This product is intended for research and analytical applications. L-Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins.
    L-Proline (Standard)
  • HY-N0391R
    L-Citrulline (Standard) 372-75-8 99.89%
    L-Citrulline (Standard) is the analytical standard of L-Citrulline. This product is intended for research and analytical applications. L-Citrulline is an amino acid derived from ornithine in the catabolism of proline or glutamine and glutamate, or from l-arginine via arginine-citrulline pathway.
    L-Citrulline (Standard)
  • HY-N0473R
    L-Tyrosine (Standard) 60-18-4 ≥98%
    L-Tyrosine (Standard) is the analytical standard of L-Tyrosine. This product is intended for research and analytical applications. L-Tyrosine is a non-essential amino acid which can inhibit citrate synthase activity in the posterior cortex.
    L-Tyrosine (Standard)
  • HY-W017443R
    L-Asparagine monohydrate (Standard) 5794-13-8 ≥98%
    L-Asparagine (monohydrate) (Standard) is the analytical standard of L-Asparagine (monohydrate). This product is intended for research and analytical applications. L-Asparagine monohydrate ((-)-Asparagine monohydrate) is a non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue.
    L-Asparagine monohydrate (Standard)
  • HY-N0666AR
    L-Aspartic acid (potassium) (Standard) 1115-63-5 ≥98%
    L-Aspartic acid (potassium) (Standard) is the analytical standard of L-Aspartic acid (potassium). This product is intended for research and analytical applications. Aspartic acid potassium is an amino acid, can be used as a suitable proagent for colon-specific agent deliverly.
    L-Aspartic acid (potassium) (Standard)
  • HY-101037R
    Sarcosine (Standard) 107-97-1 ≥98%
    Sarcosine (Standard) is the analytical standard of Sarcosine. This product is intended for research and analytical applications. Sarcosine (N-Methylglycine), an endogenous amino acid, is a competitive glycine transporter type I (GlyT1) inhibitor and N-methyl-D-aspartate (NMDA) receptor co-agonist. Sarcosine increases the glycine concentration, resulting in an indirect potentiation of the NMDA receptor. Sarcosine is commonly used for the research of schizophrenia.
    Sarcosine (Standard)
  • HY-14608AR
    L-Glutamic acid (monosodium salt) (Standard) 142-47-2 ≥98%
    L-Glutamic acid (monosodium salt) (Standard) is the analytical standard of L-Glutamic acid (monosodium salt). This product is intended for research and analytical applications. L-Glutamic acid monosodium salt is an excitatory amino acid neurotransmitter that acts as an agonist for all subtypes of glutamate receptors (metabolic rhodophylline, NMDA, and AMPA). L-Glutamic acid monosodium salt has an agonist effect on the release of DA from dopaminergic nerve endings. L-Glutamic acid monosodium salt can be used in the study of neurological diseases.
    L-Glutamic acid (monosodium salt) (Standard)
  • HY-15121R
    L-Theanine (Standard) 3081-61-6 ≥98%
    L-Theanine (Standard) is the analytical standard of L-Theanine. This product is intended for research and analytical applications. L-Theanine (L-Glutamic Acid γ-ethyl amide) is a non-protein amino acid contained in green tea leaves, which blocks the binding of L-glutamic acid to glutamate receptors in the brain, and with neuroprotective, anticancer and anti-oxidative activities. L-Theanine can pass through the blood–brain barrier and is orally active.
    L-Theanine (Standard)
  • HY-N0229R
    L-Alanine (Standard) 56-41-7 ≥98%
    L-Alanine (Standard) is the analytical standard of L-Alanine. This product is intended for research and analytical applications. L-Alanine is a non-essential amino acid, involved in sugar and acid metabolism, increases immunity, and provides energy for muscle tissue, brain, and central nervous system. In Vitro: The viability of both hiPSCs, 201B7 cells and ehiPSCs decrease with an increase in L-Alanine concentration, and reach 7.5±1.3% and 3.7±0.7% respectively at 1.2 M of L-Alanine. On the other hand, no decrease in the viability of hFBs and hSkMCs are observed. Although the viability of iCMs slightly decreases along with the increase of the L-Alanine concentration, viability of iCMs at 1.2 M concentration of L-Alanine, 49.4±6.9%, is significantly higher than that of undifferentiated iPSCs, 201B7 cells and ehiPSCs (p< 0.01). The viability of hiPSCs, 201B7 cells and ehiPSCs, drastically decrease even after 2 or 4 h treatment. In contrast, the viability of hFBs fails to decrease at 1, 2, and 4 h and shows a small decrease at 24 h treatment. The viability of 201B7 cells in suspension culture decreases to 11.8±6.0% following treatment with 1.2 M L-Alanine for 2 h, whereas that of hFBs is 72.9±14.2%.
    L-Alanine (Standard)
  • HY-N0230R
    β-Alanine (Standard) 107-95-9 ≥98%
    β-Alanine (Standard) is the analytical standard of β-Alanine. This product is intended for research and analytical applications. β-Alanine is a non-essential amino acid that is shown to be metabolized into carnosine, which functions as an intracellular buffer.
    β-Alanine (Standard)
  • HY-N0469R
    L-Lysine (Standard) 56-87-1 ≥98%
    L-Lysine (Standard) is the analytical standard of L-Lysine. This product is intended for research and analytical applications. L-lysine is an essential amino acid for humans with orally activity. L-lysine can inhibit the occurrence of HSV infections and is used in herpes research. L-lysine increases calcium absorption, reduces diabetes-related diseases, improves gut health, and alleviates pancreatic inflammation. L-lysine can be used in research on metabolism, infection, and inflammation. IC50 & Target:L-lysine (150 mg/kg) promotes, but not initiates, bladder cancer. The administration of L-lysine to rats submitted to colovesical cystoplasty accelerates the development of transitional metaplasia of the intestinal epithelium.
    L-lysine (10 mg/kg) treatment attenuates pancreatic tissue injury induced by L-arginine by inhibiting the release of the inflammatory cytokine IL-6 and enhance antioxidant activity. In Vivo:L-lysine (10?mg/kg, p.o., pre-treated or post-treated, administration duration 15 days) treatment attenuates pancreatic tissue injury induced by L-arginine by inhibiting the release of the inflammatory cytokine IL-6 and enhance antioxidant activity in acute pancreatitis mice model. L-lysine (5 or 10?mg/kg, p.o., 45 days) ameliorates sepsis-induced acute lung injury in a lipopolysaccharide (HY-D1056)-induced mouse model.
    L-Lysine (Standard)
  • HY-N0650R
    L-Serine (Standard) 56-45-1 ≥98%
    L-Serine (Standard) is the analytical standard of L-Serine. This product is intended for research and analytical applications. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation.
    L-Serine (Standard)
  • HY-N0667R
    L-Asparagine (Standard) 70-47-3 ≥98%
    L-Asparagine (Standard) is the analytical standard of L-Asparagine. This product is intended for research and analytical applications. L-Asparagine ((-)-Asparagine) is a non-essential amino acid involved in the metabolic control of nerve and brain tissue cell function. L-Asparagine has antitumor activity. In Vitro:L-Asparagine (0.03 mM) can reverse the proliferation decline of six human cancer cells induced by ASNS siRNA knockdown.
    L-Asparagine (10 mM, 4 h) can stimulate ODC activity and proliferation in IPEC-J2 cells.
    L-Asparagine (Standard)