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2-Mercapto-3-butanol

CAS No.
37887-04-0
Chemical Name:
2-Mercapto-3-butanol
Synonyms
FEMA 3502;Fema no. 3502;3-Thio-2-butanol;Einecs 253-701-0;3-Mercapto-2-butanol;2-MERCAPTO-3-BUTANOL;3-MERCAPTOBUTAN-2-OL;3-sulfanylbutan-2-ol;(R,S)-2-mercapto-3-butanol;(R*,S*)-3-mercaptobutan-2-ol
CBNumber:
CB2129062
Molecular Formula:
C4H10OS
Molecular Weight:
106.19
MDL Number:
MFCD00010271
MOL File:
37887-04-0.mol
MSDS File:
SDS
Last updated:2026-05-27 23:55:38

2-Mercapto-3-butanol Properties

Boiling point 53 °C/10 mmHg (lit.)
Density 1.013 g/mL at 25 °C (lit.)
FEMA 3502 | 2-MERCAPTO-3-BUTANOL
refractive index n20/D 1.48(lit.)
FLAVIS Number 12.024 | 3-Mercaptobutan-2-ol
Flash point 143 °F
pka 10.57±0.10(Predicted)
Specific Gravity 0.999
Odor at 0.10 % in propylene glycol. sulfury roasted onion garlic meaty
Odor Type sulfurous
biological source synthetic
JECFA Number 546
Major Application flavors and fragrances
InChI InChI=1/C4H10OS/c1-3(5)4(2)6/h3-6H,1-2H3/t3-,4+/s3
InChIKey MJQWABQELVFQJL-QZMQZWAZNA-N
SMILES C[C@@H](O)[C@@H](S)C |&1:1,3,r|
LogP 0.47
CAS DataBase Reference 37887-04-0(CAS DataBase Reference)
FDA UNII 82S57584XS
UNSPSC Code 12164502
NACRES NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)
GHS02,GHS07
Signal word  Warning
Hazard statements  H226-H315-H319-H335
Precautionary statements  P210-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36/37/39
RIDADR  UN 3336 3/PG 3
WGK Germany  3
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2
STOT SE 3

2-Mercapto-3-butanol price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W350206 2-Mercapto-3-butanol mixture of isomers, ≥97%, FG 37887-04-0 1 each $58 2026-04-30 Buy
Sigma-Aldrich W350206 2-Mercapto-3-butanol mixture of isomers, ≥97%, FG 37887-04-0 1kg $595 2026-04-30 Buy
Sigma-Aldrich W350206 2-Mercapto-3-butanol mixture of isomers, ≥97%, FG 37887-04-0 1 unit $56.3 2025-07-31 Buy
Sigma-Aldrich W350206 2-Mercapto-3-butanol mixture of isomers, ≥97%, FG 37887-04-0 sample-k $54.6 2024-03-01 Buy
Sigma-Aldrich W350206 2-Mercapto-3-butanol mixture of isomers, ≥97%, FG 37887-04-0 25g $149 2023-01-07 Buy
Product number Packaging Price Buy
W350206 1 each $58 Buy
W350206 1kg $595 Buy
W350206 1 unit $56.3 Buy
W350206 sample-k $54.6 Buy
W350206 25g $149 Buy

2-Mercapto-3-butanol Chemical Properties, Uses, Production

Uses

2-Mercapto-3-butanol is used in preparation of low-energy UV curing polyurethane acrylate prepolymer with fast UV curing speed, good toughness and stable storage and UV curing coating.

Taste threshold values

Taste characteristics at 4 ppm: meaty, savory, sauteed onion and garlic.

Biochem/physiol Actions

Taste at 4 ppm

2-Mercapto-3-butanol Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 268)
Supplier Tel Email Country ProdList Advantage
Tianjin Zhongxin Chemtech Co., Ltd. 022-66880623 sales@tjzxchem.com China 612 60
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078 sales@jingyan-chemical.com China 9963 60
Shijiazhuang Lida Chemical Co., Ltd. +86 (311) 8573-7996 service@lid-ff.cn China 294 65
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11674 57
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123 sj_scrc@sinopharm.com China 9791 79
ZhengZhou HuaWen Chemical Co.Ltd 0370-2785118 17550508557 675141927@qq.com China 3201 55
Chengdu Ai Keda Chemical Technology Co., Ltd. 4008-755-333 18080918076 800078821@qq.com China 9706 55
T&W GROUP 021-61551611 13296011611 contact@trustwe.com China 9884 58

View Latest Price from 2-Mercapto-3-butanol manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Mercapto-3-butanol pictures 2026-09-02 2-Mercapto-3-butanol
37887-04-0
$1.10-32.00 1kg 99% Henan Fengda Chemical Co., Ltd
2-Mercapto-3-butanol pictures 2026-06-30 2-Mercapto-3-butanol
37887-04-0
1KG 98.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
2-Mercapto-3-butanol pictures 2025-06-20 2-Mercapto-3-butanol
37887-04-0
$9.00-20.00 1kg 0.99 20 tons per month Hebei Yanxi Chemical Co., Ltd.
FEMA 3502 2-MERCAPTO-3-BUTANOL (R*,S*)-3-mercaptobutan-2-ol 3-MERCAPTOBUTAN-2-OL 2-MERCAPTO-3-BUTANOL 97+% MIXTURE OF & 2-MERCAPTO-3-BUTANOL FEMA NO.3502 2-Butanol, 3-mercapto-, (2R,3S)-rel- 3-Thio-2-butanol 3-Mercapto-2-butanol 2-Butanol, 3-mercapto-, (theta,S)- Einecs 253-701-0 Fema no. 3502 2-Mercapto-3-butanol >=98.0% 3-sulfanylbutan-2-ol 2-Mercapto-3-butanol, Mixture of isoMers (2R,3S)-3-Mercaptobutan-2-ol 2-Butanol, 3-mercapto-,(2R,3S)-rel- (9CI) 2-Mercapto-3-butanol USP/EP/BP (R,S)-2-mercapto-3-butanol High purity CAS 37887-04-0 2-Mercapto-3-butanol in stock rel-(2R,3S)-3-Mercapto-2-butanol (2R,3S)-3-sulfanylbutan-2-ol 37887-04-0 95-71-7 3484-18-6 CH3CHOHCHSHCH3 C4H10OS C4H10SO Thiols/Mercaptans Sulfur Compounds Organic Building Blocks Building Blocks Sulfides flavors Alphabetical Listings Flavors and Fragrances M-N Pharmaceutical Raw Materials thiol Flavor