Description

n-Methylcysteine is a sulfur-containing amino acid derivative, recognized for its role as a biochemical precursor and a versatile building block in organic synthesis. Its significance lies in its ability to modulate thiol-disulfide balance and serve as a key intermediate in the production of specialized pharmaceuticals and research compounds. This high-purity material is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors seeking reliable, high-quality raw materials for advanced applications.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those targeting metabolic and neurological pathways.
• Biochemical Research: Used as a substrate or precursor in enzymatic studies and metabolic pathway investigations related to cysteine metabolism.
• Peptide Synthesis: Serves as a modified amino acid residue in the production of synthetic peptides for therapeutic and diagnostic applications.
• Antioxidant Studies: Employed in research models to study cellular redox processes and the effects of thiol-based antioxidants.
• Nutritional Science: Investigated for its potential role as a source of bioavailable sulfur in specialized nutritional formulations.
• Cosmetic Ingredient Development: Explored for use in advanced skincare products aimed at supporting skin's antioxidant defenses.

Basic Information

Product Name	n-Methylcysteine
CAS No.	4026-48-6
Molecular Formula	C4H9NO2S
Molecular Weight	135.18 g/mol
Synonyms	N-Methyl-L-cysteine; (R)-2-Amino-3-(methylthio)propanoic acid; 2-Amino-3-(methylthio)propionic acid; Methylcysteine; L-N-Methylcysteine; S-Methylcysteine; 3-(Methylthio)alanine; NSC 52413
EINECS	223-700-8

Quality Control

Our n-Methylcysteine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and residual solvent screening, to ensure it meets exacting standards for research and production use. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Optical Rotation	Specific range provided on COA
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.