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2-Mercaptoisobutyric acid

CAS No.
4695-31-2
Chemical Name:
2-Mercaptoisobutyric acid
Synonyms
2-MERCAPTO-2-METHYLPROPANOIC ACID;2-THIOISOBUTYRIC ACID;2-Mercaptoisobutyric acid;2-mercapto-2-methylpropionicacid;2-mercapto-2-methyl-propanoicaci;2-methyl-2-sulfanylpropanoic acid;2-methyl-2-sulfanyl-propanoic acid;Propanoic acid, 2-mercapto-2-methyl-
CBNumber:
CB3277827
Molecular Formula:
C4H8O2S
Molecular Weight:
120.17
MDL Number:
MFCD00797841
MOL File:
4695-31-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:51:58

2-Mercaptoisobutyric acid Properties

Melting point 59-64°C
Boiling point 194.19°C (rough estimate)
Density 1.143 (estimate)
refractive index 1.4782 (estimate)
storage temp. Refrigerator
solubility Chloroform (Sparingly), Methanol (Sparingly)
form solid
pka 3.73±0.10(Predicted)
color White to Pale Yellow Semi-Solid
FDA UNII XT2NW8D545
EPA Substance Registry System 2-Mercaptoisobutyric acid (4695-31-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)
GHS05
Signal word  Danger
Hazard statements  H318
Precautionary statements  P280-P305+P351+P338-P310
Hazard Codes  Xi
Risk Statements  41
Safety Statements  26-39
TSCA  TSCA listed

2-Mercaptoisobutyric acid price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological M2952-40 2-Mercaptoisobutyric Acid, 90% (2-Mercapto-2-methylpropanoic Acid) 4695-31-2 1g $446 2026-06-03 Buy
TRC TRC-M253400-1G 2-Mercaptoisobutyric Acid, 90% 4695-31-2 1g $255 2026-06-03 Buy
TRC TRC-M253400-10G 2-Mercaptoisobutyric Acid, 90% 4695-31-2 10g $1836 2026-06-03 Buy
TRC TRC-M253400-100MG 2-Mercaptoisobutyric Acid, 90% 4695-31-2 100mg $97 2026-06-03 Buy
aablocks AA00DDPF 2-methyl-2-sulfanylpropanoic acid 90% 4695-31-2 50mg $135 2026-05-28 Buy
Product number Packaging Price Buy
M2952-40 1g $446 Buy
TRC-M253400-1G 1g $255 Buy
TRC-M253400-10G 10g $1836 Buy
TRC-M253400-100MG 100mg $97 Buy
AA00DDPF 50mg $135 Buy

2-Mercaptoisobutyric acid Chemical Properties, Uses, Production

Chemical Properties

Soft Colourless Solid

Uses

2-Mercaptoisobutyric Acid, 90% (cas# 4695-31-2) is a compound useful in organic synthesis.

2-Mercaptoisobutyric acid Preparation Products And Raw materials

Global Suppliers ( 62)
Supplier Tel Email Country ProdList Advantage
Shanghai Melke Chemical Technology Co.,Ltd 15527425680 17514026729 2248986658@qq.com China 7 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Chengdu HuaXia Chemical Reagent Co. Ltd 400-1166-196 13458535857 cdhxsj@163.com China 13323 58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66028182 17714375163 yftan@aikonchem.com China 16674 50
Wuhan Chemwish Technology Co., Ltd 027-67849912 sales@chemwish.com China 9144 60
Shandong Xiya Chemical Co., Ltd. 4009903999 13395398332 sales@xiyashiji.com China 20788 60
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58

View Latest Price from 2-Mercaptoisobutyric acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Mercaptoisobutyricacid pictures 2026-08-07 2-Mercaptoisobutyricacid
4695-31-2
$1.00-22.00 1KG 99% 100000KG Shaanxi Dideu Medichem Co. Ltd
2-MERCAPTOISOBUTYRIC ACID pictures 2022-11-04 2-MERCAPTOISOBUTYRIC ACID
4695-31-2
$10.00 1G 99.99% 1000kg Hebei Ningnan Trade Co. LTD
2-THIOISOBUTYRIC ACID 2-methyl-2-sulfanylpropanoic acid 2-methyl-2-sulfanyl-propanoic acid 2-mercapto-2-methyl-propanoicaci 2-mercapto-2-methylpropionicacid Propanoic acid, 2-mercapto-2-methyl- 2-MERCAPTO-2-METHYLPROPANOIC ACID 2-Mercaptoisobutyric acid 4695-31-2 CH32CSHCOOH Metal Isotopes Sulfur & Selenium Compounds