Description

Ammonium Mercaptopropionate is the ammonium salt of 3-mercaptopropionic acid, a versatile sulfur-containing organic compound. It serves as a critical intermediate and reagent in organic synthesis, valued for its ability to introduce thiol functional groups. This product is essential for manufacturers and R&D facilities in the pharmaceutical, polymer, and specialty chemical industries seeking to modify molecular structures or create novel materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly where a thiol or disulfide linkage is required.
• Polymer Modification & Cross-linking Agent: Acts as a chain transfer agent in radical polymerizations and can introduce functional sites for further modification in acrylic and vinyl polymers.
• Bioconjugation Reagent: Facilitates the attachment of molecules (e.g., drugs, probes, PEG chains) to proteins, antibodies, or other biomolecules via thiol-maleimide or disulfide chemistry.
• Hair Care & Cosmetic Ingredients: Employed in the production of thioglycolate derivatives used in permanent wave solutions and depilatory agents.
• Chemical Synthesis Building Block: A key starting material for synthesizing various organosulfur compounds, including other mercapto-acid derivatives and ligands for metal complexes.
• Analytical Chemistry: Can be used as a derivatization agent for the detection and analysis of specific functional groups or metal ions.

Basic Information

Product Name	Ammonium Mercaptopropionate
CAS No.	57862-95-0
Molecular Formula	C3H9NO2S
Molecular Weight	123.17 g/mol
Synonyms	Ammonium 3-Mercaptopropionate; 3-Mercaptopropionic Acid Ammonium Salt; Ammonium β-Mercaptopropionate; Ammonium Thioglycolate Propionate; MAP; 3-Sulfanylpropanoic Acid Ammonium Salt
EINECS	Contact for details

Quality Control

Our Ammonium Mercaptopropionate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and a Certificate of Analysis (COA) with every shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment supports applications requiring reliable and reproducible performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and easily oxidized; prolonged exposure to air should be avoided. Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
pH (10% solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm

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