3-mercaptopropionic acid cas 107-96-0

Chemical Name: 3-Mercaptopropionic acid
CAS No.: 107-96-0
Molecular Fomula: C3H6O2S
Molecular Weight:106.14
Appearance:Colourless or light yellow liquid
Assay: 98.0%

3-Mercaptopropionic acid CAS 107-96-0

3-Mercaptopropionic acid , Promotion Season Now in Store and Free Sample for Testing with Factory Price

Chemical Name: 3-Mercaptopropionic acid
CAS No.: 107-96-0
Molecular Fomula: C3H6O2S
Molecular weight: 106.14
Appearance: White Crystalline Powder, Crystals, and/or Chunks
Sample: Available

3-Mercaptopropionic acid CAS 107-96-0

Description of 3-Mercaptopropionic acid

Colourless or light yellow transparent liquid. Melting point 16.8°C, boiling point 114-115.5°C (1.73kPa), 85-86°C (0.Chemicalbook4kPa), relative density 1.2199 (20/4°C), refractive index 1.4921, flash point 93°C. Miscible with water, alcohols and ethers.

Basic Info of 3-Mercaptopropionic acid

Chemical Name

3-mercaptopropanoic acid


3-MPA;3-Thiopropion acid;Thiohydracrylic acid;B-THIOPROPIONIC ACID;3-MPA;3-sulfanylpropanoic acid;3-MPA;3-Thiopropionic acid;Thiopropionic acid;3-MPA;Propanoic acid, 3-mercapto-.



Molecular Formula


Molecular Weight






Safety Info



Hazard Class


Safety Statements


HS Code


WGK Germany


Packing Group



UN 2922

Risk Statements

R23/24/25; R34

Hazard Codes



Appearance & Physical State

clear colourless to yellowish liquid after melting



Boiling Point

110-111ºC (15 mmHg)

Melting Point


Flash Point


Refractive Index


Water Solubility



Has not been fully evaluated.

Storage Condition

Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Corrosives area.

Vapor Pressure

0.04 mm Hg ( 20 °C)

Numbering system

PubChem number


RTECS number


BRN number


EINECS number


MDL number


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What is 3-Mercaptopropionic acid?

     With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is 3-Mercaptopropionic acid which has developed particularly rapidly in recent years. Do you know about 3-Mercaptopropionic acid?

The official answer: Mercaptopropionic acid is an organic substance with the chemical formula C3H6O2S. It is a transparent liquid with a strong sulphide odour and is foul-smelling and toxic. It is used as an intermediate for the pharmaceutical fenaral and as a stabilizer for polyvinyl chloride.It is made from acrylonitrile and thiourea as raw material. Firstly, thiourea and hydrochloric acid are reacted at 40℃ for 0.5h, acrylonitrile is added dropwise, reacted at 110-113℃ for 3h, cooled to 40℃, 4% sodium hydroxide solution is added to pH 11, dehydrogenated for 4h, then neutralised at 3Chemicalbook0℃ with hydrochloric acid to pH 1-2. Then benzene is added to extract, benzene is recovered and distilled under reduced pressure, 125-140℃ fraction is collected to obtain finished product. In addition, 3-mercaptopropionic acid can also be produced by the reaction of hydrogen sulphide with pyruvic acid or with β-propanolactone.

What’s the application of 3-Mercaptopropionic acid?

It is used as an intermediate for the pharmaceutical fenaryl and as a stabilizer for polyvinyl chloride. Like thioglycolic acid, it can be used in transparent products and has a very good thermal stability, superior to other stabilisers. It is also used as an antioxidant, catalyst and biochemical reagent. Used as an antioxidant, catalyst and biochemical reagent. High speed RP-HPLC/FC analysis of amino acids.


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Keywords of 3-Mercaptopropionic acid

3-MPA,   107-96-0, buy 3-MPA, 3-MPA supplier, purchase 3-MPA, 3-MPA cost,  manufacturer, order 3-MPA, high purity 3-MPA


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