Description

S-Methylthiocysteine is a sulfur-containing amino acid derivative with the CAS number 33784-54-2. This compound serves as a crucial building block and intermediate in the synthesis of more complex bioactive molecules and pharmaceuticals. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for drug discovery, metabolic studies, and the production of specialized peptides.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting metabolic pathways or requiring sulfur-based functional groups.
• Biochemical Research: Used as a standard or reagent in enzymatic studies, metabolic pathway analysis, and research into sulfur amino acid metabolism.
• Peptide Synthesis: Employed as a modified cysteine analog in the solid-phase or solution-phase synthesis of specialized peptides with enhanced stability or specific biological activity.
• Nutritional Science Studies: Utilized in research models to investigate the role of sulfur amino acids in nutrition, cellular function, and health.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	S-Methylthiocysteine
CAS No.	33784-54-2
Molecular Formula	C4H9NO2S
Molecular Weight	135.19 g/mol
Synonyms	S-Methyl-L-cysteine; (2R)-2-Amino-3-(methylsulfanyl)propanoic acid; L-S-Methylcysteine; Methylthiocysteine; 3-(Methylthio)-L-alanine; NSC 163039; S-Methylcysteine
EINECS	Contact for details

Quality Control

Our S-Methylthiocysteine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets stringent specifications. Certificates of Analysis (COA) documenting these results are provided with every shipment to guarantee traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	[α]20/D: Specific range available on request
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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