Description

2-Mercaptopropionic Acid is a versatile organosulfur compound featuring both a carboxylic acid and a thiol functional group, making it a valuable building block in organic synthesis and industrial applications. Its dual reactivity allows it to act as a chain transfer agent, a stabilizer, and a key intermediate for producing high-performance materials. This product is essential for manufacturers in the polymer, pharmaceutical, and agrochemical sectors seeking to modify material properties or synthesize complex molecules.

Application

• As a chain transfer agent (CTA) and molecular weight regulator in the production of acrylic resins and other polymers.
• Key intermediate in the synthesis of pharmaceutical active ingredients (APIs) and agrochemicals.
• Used in the manufacture of PVC heat stabilizers and other polymer additives.
• As a precursor for thioglycolic acid derivatives used in cosmetics and hair care products.
• In the production of corrosion inhibitors and specialty chemicals for metal treatment.
• As a biochemical reagent and for modifying peptides and proteins in research.

Basic Information

Product Name	2-Mercaptopropionic Acid
CAS No.	79-42-5
Molecular Formula	C3H6O2S
Molecular Weight	106.14 g/mol
Synonyms	2-Mercaptopropionic Acid; Thiolactic Acid; 2-Sulfanylpropanoic Acid; 2-Mercaptopropanoic Acid; α-Mercaptopropionic Acid; 2-Thiolpropionic Acid; USAF EK-4960; NSC 8425; Propanoic acid, 2-mercapto-
EINECS	201-206-5

Quality Control

Our 2-Mercaptopropionic Acid is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee traceability and batch-to-batch consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its properties of being easily oxidized and highly volatile, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation and to minimize odor. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.480 - 1.490
Density (20°C)	1.195 - 1.215 g/mL

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