Description

2-Methyl-L-cysteine–hydrogen chloride (1/1) is a high-purity biochemical reagent designed for advanced research and pharmaceutical applications. This compound, with the molecular formula C₄H₁₀ClNO₂S and CAS number 148766-37-4, is a hydrochloride salt derivative of 2-Methyl-L-cysteine, offering enhanced solubility and stability for experimental use. Ideal for peptide synthesis, enzyme studies, and metabolic research, this product is rigorously tested to meet the highest standards of quality, ensuring reproducibility in scientific investigations. Each batch undergoes strict analytical validation (HPLC, NMR) to guarantee ≥98% purity, making it suitable for sensitive assays and structural biology applications.

Properties

• CAS Number: 148766-37-4
• Complexity: 106
• IUPAC Name: (2R)-2-amino-2-methyl-3-sulfanyl-propanoic acid;hydrochloride
• InChI: InChI=1S/C4H9NO2S.ClH/c1-4(5,2-8)3(6)7;/h8H,2,5H2,1H3,(H,6,7);1H/t4-;/m0./s1
• InChI Key: MAGCVRLGTQSVGF-WCCKRBBISA-N
• Exact Mass: 171.0120774
• Molecular Formula: C4H10ClNO2S
• Molecular Weight: 171.65
• SMILES: C[C@](CS)(C(=O)O)N.Cl
• Topological: 64.3
• Monoisotopic Mass: 171.0120774
• Synonyms: 148766-37-4, DTXSID80586594, 2-Methyl-L-cysteine–hydrogen chloride (1/1), DTXCID30537359, (R)-2-Amino-3-mercapto-2-methylpropanoic acid hydrochloride, (R)-2-METHYLCYSTEINE HYDROCHLORIDE, 2-methyl-L-cysteine hydrochloride, (2R)-2-amino-2-methyl-3-sulfanyl-propanoic Acid Hydrochloride, MFCD08063384, (R)-2-Methylcysteine HCl, (2R)-2-amino-2-methyl-3-sulfanylpropanoic acid;hydrochloride, (2R)-2-AMINO-2-METHYL-3-SULFANYLPROPANOIC ACID HYDROCHLORIDE, L-Cysteine, 2-methyl-, hydrochloride (1:1), L-2-Methylcysteine Hydrochloride;, 2-Methyl-?L-cysteine Hydrochloride, Cysteine, 2-methyl-, hydrochloride, 2-methyl cysteine hydrochloride, SCHEMBL1132932, MAGCVRLGTQSVGF-WCCKRBBISA-N, alpha-methyl-L-cysteine hydrochloride, AKOS024465075, AB65504, FM45170, (R)-alpha-Methyl-L-cysteine hydrochloride, DB-102198, EN300-7605384, (R)-2-Amino-3-mercapto-2-methylpropanoicacidhydrochloride, (R)-2-Amino-3-mercapto-2-methylpropionic acid hydrochloride

This compound is widely used in biochemical research as a cysteine analog for studying enzyme mechanisms and protein modifications. It serves as a key intermediate in peptide synthesis, particularly for introducing methylated cysteine residues. Researchers also employ it in metabolic pathway studies due to its role in sulfur-containing amino acid metabolism. Its stability makes it valuable for pharmaceutical development, including drug formulation and proteomics research.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2A (100%)
• STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.