Description

n-(2-Mercapto-2-Methylpropionyl)-Dl-Cysteine is a specialized sulfur-containing amino acid derivative with a unique thiol-protected structure. This compound is valued for its role as a key intermediate in the synthesis of advanced pharmaceutical actives and as a precursor in biochemical research. It is primarily sought by manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for developing novel therapeutic agents and conducting proteomics studies.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of cysteine protease inhibitors and other active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a precursor or substrate in enzymatic studies and proteomics research due to its reactive thiol group.
• Peptide Synthesis: Serves as a modified cysteine residue in solid-phase peptide synthesis (SPPS) to introduce specific functional groups or stability.
• Cosmetic Ingredient Precursor: Potential intermediate for synthesizing compounds used in skin-conditioning and anti-aging formulations.
• Chelating Agent Synthesis: Utilized in the development of novel chelating agents for metal ion binding applications.

Basic Information

Product Name	n-(2-Mercapto-2-Methylpropionyl)-Dl-Cysteine
CAS No.	130999-92-7
Molecular Formula	C7H13NO3S2
Molecular Weight	223.31 g/mol
Synonyms	DL-Cysteine, N-(2-mercapto-2-methyl-1-oxopropyl)-; 2-Methyl-2-sulfanylpropanoyl-DL-cysteine; N-(2-Mercaptoisobutyryl)-DL-cysteine; (RS)-2-[(2-Mercapto-2-methylpropanoyl)amino]-3-sulfanylpropanoic acid; Mercaptomethylpropionylcysteine; Thiola precursor; S-Acetylmercaptoisobutyryl cysteine derivative
EINECS	Contact for details

Quality Control

Our n-(2-Mercapto-2-Methylpropionyl)-Dl-Cysteine is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical intermediate use. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its property of being easily oxidized, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep the container tightly sealed to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.