2. Isotope-Labeled Compounds
  3. Isotope-Labeled Amino Acids & Peptides

Isotope-Labeled Amino Acids & Peptides

Amino Acids are organic compounds that contain anino (-NH3+) and carboxylate (-CO2-) functional groups. Amino Acids are known as the monomers of peptides and proteins. MedChemExpress ( MCE ) offers a diverse array of Stable Isotope-Labeled Amino Acids & Peptides, including free and protected amino acids. Applications of Stable Isotope-Labeled amino acids are directed to proteomic, metabolomics, or structural biology researches, etc.

Isotope-Labeled Amino Acids & Peptides (547):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-N0215S12
    L-Phenylalanine-d5 56253-90-8 99.15%
    L-Phenylalanine-d5 is the deuterium labeled L-Phenylalanine. L-Phenylalanine ((S)-2-Amino-3-phenylpropionic acid) is an essential amino acid isolated from Escherichia coli. L-Phenylalanine is a α2δ subunit of voltage-dependent Ca+ channels antagonist with a Ki of 980 nM. L-phenylalanine is a competitive antagonist for the glycine- and glutamate-binding sites of N-methyl-D-aspartate receptors (NMDARs) (KB of 573 μM ) and non-NMDARs, respectively. L-Phenylalanine is widely used in the production of food flavors and pharmaceuticals[1][2][3][4].
    L-Phenylalanine-d<sub>5</sub>
  • HY-I1124
    L-Valine-d8 35045-72-8 99.10%
    L-Valine-d8 is a deuterated form of L-Valine. L-Valine-d8 can be used in the labelled synthesis of L-valineamide-d8 intermediate[1]. L-Valine is one of 20 proteinogenic amino acids. L-Valine is an essential amino acid[2].
    L-Valine-d<sub>8</sub>
  • HY-N0067S
    γ-Aminobutyric acid-d6 70607-85-1 99.90%
    γ-Aminobutyric acid-d6 is the deuterium labeled γ-Aminobutyric acid. γ-Aminobutyric acid (4-Aminobutyric acid) is a major inhibitory neurotransmitter in the adult mammalian brain[1][2], binding to the ionotropic GABA receptors (GABAA receptors) and metabotropic receptors (GABAB receptors)[2].
    γ-Aminobutyric acid-d<sub>6</sub>
  • HY-N0623S
    L-Tryptophan-d5 62595-11-3 99.85%
    L-Tryptophan-d5 is the deuterium labeled L-Tryptophan. L-Tryptophan (Tryptophan) is an essential amino acid that is the precursor of serotonin, melatonin, and vitamin B3[1].
    L-Tryptophan-d<sub>5</sub>
  • HY-W010347S
    DL-Homocysteine-d4 416845-90-4 98.4%
    DL-Homocysteine-d4 is the deuterium labeled DL-Homocysteine. DL-Homocysteine is a weak neurotoxin, and can affect the production of kynurenic acid in the brain[1][2].
    DL-Homocysteine-d<sub>4</sub>
  • HY-P3207S
    DLPLTFGGGT-Lys13C6,15N2 TFA
    DLPLTFGGGT-Lys-13C6,15N2 (TFA) is a deuterated labeled DLPLTFGGGTK.
    DLPLTFGGGT-Lys<sup>13</sup>C<sub>6</sub>,<sup>15</sup>N<sub>2</sub> TFA
  • HY-159064S
    DSPSAPVNVT(Val-13C5,15N)R TFA
    DSPSAPVNVT(Val-13C5,15)R TFA is the 13C and 15N-labeled DSPSAPVNVT(Val)R. Radioactive isotopes labeled compounds can be used in metabolic analysis, allowing the movement of individual atoms to be precisely tracked and quantified.
    DSPSAPVNVT(Val-<sup>13</sup>C<sub>5</sub>,<sup>15</sup>N)R TFA
  • HY-B1812S4
    Veratrole-d2-1 3047059-94-6
    Veratrole-d2-1 is the deuterium labeled Veratrole (HY-B1812). Veratrole is a key compound found widely in plants that attracts pollinators. Veratrole can be used as a safe fragrance ingredient with low acute and administration toxicity.
    Veratrole-d<sub>2</sub>-1
  • HY-N0486S9
    L-Leucine-d3 87828-86-2 ≥98.0%
    L-Leucine-d3 is the deuterium labeled L-Leucine. L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway[1].
    L-Leucine-d<sub>3</sub>
  • HY-N0486S1
    L-Leucine-13C 74292-94-7 99.4%
    L-Leucine-13C is the 13C-labeled L-Leucine. L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway[1].
    L-Leucine-<sup>13</sup>C
  • HY-N0455AS8
    L-Arginine-13C6,15N4 hydrochloride 202468-25-5 ≥99.0%
    L-Arginine-13C6,15N4 (hydrochloride) is the 13C- and 15N-labeled L-Arginine hydrochloride. L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.
    L-Arginine-<sup>13</sup>C<sub>6</sub>,<sup>15</sup>N<sub>4</sub> hydrochloride
  • HY-N0229S3
    L-Alanine-d4 18806-29-6 99.97%
    L-Alanine-d4 is the deuterium labeled L-Alanine. 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.
    L-Alanine-d<sub>4</sub>
  • HY-N0326S7
    L-Methionine-d3 13010-53-2 99.90%
    L-Methionine-d3 is the deuterium labeled L-Methionine. L-Methionine is the L-isomer of Methionine, an essential amino acid for human development. Methionine acts as a hepatoprotectant.
    L-Methionine-d<sub>3</sub>
  • HY-N0390S8
    L-Glutamine-15N2 204451-48-9 ≥98.0%
    L-Glutamine-15N2 is the 15N-labeled L-Glutamine. 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[1][2].
    L-Glutamine-<sup>15</sup>N<sub>2</sub>
  • HY-14608S7
    L-Glutamic acid-d5 2784-50-1 ≥99.0%
    L-Glutamic acid-d5 is the deuterium labeled L-Glutamic acid. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals.
    L-Glutamic acid-d<sub>5</sub>
  • HY-N0390S9
    L-Glutamine-15N-1 59681-32-2 ≥98.0%
    L-Glutamine-15N-1 is the 15N-labeled L-Glutamine. 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[1][2].
    L-Glutamine-<sup>15</sup>N-1
  • HY-N0717S6
    L-Valine-13C5 55443-52-2 99.6%
    L-Valine-13C5 is the 13C-labeled L-Valine. L-Valine is one of 20 proteinogenic amino acids. L-Valine is an essential amino acid[1].
    L-Valine-<sup>13</sup>C<sub>5</sub>
  • HY-N0455AS6
    L-Arginine-13C6 hydrochloride 201740-91-2 99.00%
    L-Arginine-13C6 (hydrochloride) is the 13C-labeled L-Arginine hydrochloride. L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.
    L-Arginine-<sup>13</sup>C<sub>6</sub> hydrochloride
  • HY-N0650S
    L-Serine-13C3 201595-68-8 98.20%
    L-Serine-13C3 is the 13C-labeled L-Serine. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation.
    L-Serine-<sup>13</sup>C<sub>3</sub>
  • HY-W014423S4
    L-Histidine-d5 hydrochloride hydrate 2483831-75-8 99.63%
    L-Histidine-d5 (hydrochloride hydrate) is the deuterium labeled L-Histidine hydrochloride hydrate. L-Histidine hydrochloride hydrate (H-His-OH.HCl.H2O) is an endogenous metabolite.
    L-Histidine-d<sub>5</sub> hydrochloride hydrate