Description

2-Mercaptoisobutyric Acid is a versatile sulfur-containing carboxylic acid that serves as a critical building block in organic synthesis. Its unique structure, featuring both a thiol and a carboxylic acid group, makes it an essential intermediate for creating compounds with specific functional properties. This high-purity chemical is primarily utilized by the pharmaceutical, agrochemical, and specialty polymer industries for applications requiring precise molecular modification.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting metabolic and cardiovascular diseases.
• Agrochemical Synthesis: Building block for manufacturing herbicides, fungicides, and plant growth regulators that benefit from thiol-incorporated chemistry.
• Polymer Modification Agent: Used to introduce thiol functional groups into polymer chains, altering properties like adhesion, cross-linking density, and stability.
• Peptide Synthesis & Biochemistry: Serves as a protected or deprotected cysteine analog in peptide research and the development of biochemical probes.
• Flavor & Fragrance Industry: Intermediate for synthesizing sulfur-containing flavor compounds that contribute to meaty, roasted, or savory notes.
• Chemical Research & Development: A valuable reagent for exploring new synthetic pathways and creating novel thioether or disulfide linkages in organic chemistry.

Basic Information

Product Name	2-Mercaptoisobutyric Acid
CAS No.	4695-31-2
Molecular Formula	C4H8O2S
Molecular Weight	120.17 g/mol
Synonyms	2-Mercapto-2-methylpropanoic Acid; 2-Methyl-2-sulfanylpropanoic Acid; 2-Thioisobutyric Acid; α-Mercaptoisobutyric Acid; MIBA; (2-Mercapto-2-methyl)propionic Acid; 2-Mercapto-2-methylpropionic Acid; Isobutyric acid, 2-mercapto-
EINECS	225-162-1

Quality Control

Our 2-Mercaptoisobutyric Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and research use. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, open flames, and strong oxidizing agents. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.470 - 1.480
Specific Gravity (20°C)	1.150 - 1.180

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