Description

2-Mercaptopropionic Acid 1-Methylethyl Ester is a versatile organosulfur compound valued for its role as a key intermediate and chain transfer agent in polymer synthesis. Its unique chemical structure, featuring both a thiol and an ester group, makes it essential for controlling molecular weight and introducing functional end-groups in various polymerization processes. This product is primarily utilized by manufacturers in the polymer, specialty chemical, and pharmaceutical industries for producing materials with tailored properties.

Application

• Polymerization Chain Transfer Agent (CTA): A critical component in free-radical polymerization (e.g., of acrylics, styrenics, vinyl acetate) to regulate polymer molecular weight and polydispersity.
• Intermediate for Specialty Chemicals: Serves as a building block for synthesizing antioxidants, stabilizers, and other functional additives.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs where a thioester moiety is required.
• Surface Modifier: Can be used to introduce thiol functional groups onto surfaces or polymers for further conjugation or cross-linking.
• Adhesive and Sealant Formulations: Imparts specific rheological and curing properties in advanced adhesive systems.
• Research & Development: Employed in academic and industrial R&D for novel material science and organic synthesis projects.

Basic Information

Product Name	2-Mercaptopropionic Acid 1-Methylethyl Ester
CAS No.	16849-77-7
Molecular Formula	C6H12O2S
Molecular Weight	148.22 g/mol
Synonyms	Isopropyl 2-Mercaptopropionate; Isopropyl 2-Mercaptopropanoate; 2-Mercaptopropionic Acid Isopropyl Ester; 2-Sulfanylpropanoic Acid 1-Methylethyl Ester; Isopropyl β-Mercaptopropionate; 1-Methylethyl 2-Mercaptopropanoate; Propanoic acid, 2-mercapto-, 1-methylethyl ester
EINECS	240-876-8

Quality Control

Our 2-Mercaptopropionic Acid 1-Methylethyl Ester is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including assay, purity, and impurity profile determination, to ensure it meets the high standards required for industrial and research applications. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to guarantee traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, 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	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Specific Gravity (20°C)	1.020 - 1.050
Refractive Index (20°C)	1.450 - 1.470

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