Description

(2S)-2-methyl-3-sulfanylpropanoic acid, also known as (S)-3-mercapto-2-methyl-propionic acid, is a high-purity chiral building block and flavor precursor characterized by its distinctive thiol functionality. This compound is essential for synthesizing complex molecules where stereochemical control and sulfur-based reactivity are critical. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, flavor & fragrance, and fine chemical synthesis sectors.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the development of active pharmaceutical ingredients (APIs), particularly in protease inhibitor research.
• Flavor & Fragrance Precursor: Used in the synthesis of sulfur-containing flavor compounds that impart meaty, savory, or roasted notes to food products.
• Asymmetric Synthesis: Serves as a valuable starting material or ligand in catalytic asymmetric reactions due to its stereogenic center.
• Biochemical Research: Employed in peptide mimetics and as a tool compound for studying enzyme mechanisms involving thiol groups.
• Fine Chemical Manufacturing: Utilized in the custom synthesis of specialty chemicals, agrochemicals, and advanced materials.

Basic Information

Item	Detail
Product Name	(2S)-2-methyl-3-sulfanylpropanoic acid
CAS No.	75172-11-1
Molecular Formula	C4H8O2S
Molecular Weight	120.17 g/mol
Synonyms	(S)-3-Mercapto-2-methylpropionic acid; (S)-3-Mercapto-2-methylpropanoic acid; (S)-3-Mercapto-2-methyl-propionic acid; (S)-2-Methyl-3-mercaptopropanoic acid; L-3-Mercapto-2-methylpropionic acid; (2S)-2-Methyl-3-sulfanylpropanoic acid; 3-Mercapto-2-methylpropionic acid; 75172-11-1
EINECS	Contact for details

Quality Control

Every batch of our (2S)-2-methyl-3-sulfanylpropanoic acid is produced and controlled under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high standards required for research and industrial use. A Certificate of Analysis (COA) detailing purity, enantiomeric excess, and impurity profiles is supplied with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation and degradation. Keep the container in a cool, dry, and well-ventilated area separate from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (KF)	≤ 0.5%

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