2-Mercapto-3-butanol
- CAS NO.:37887-04-0
- Empirical Formula: C4H10OS
- Molecular Weight: 106.19
- MDL number: MFCD00010271
- EINECS: 253-701-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-03 14:17:14
What is 2-Mercapto-3-butanol?
The Uses of 2-Mercapto-3-butanol
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
Properties of 2-Mercapto-3-butanol
| Boiling point: | 53 °C/10 mmHg (lit.) |
| Density | 1.013 g/mL at 25 °C (lit.) |
| FEMA | 3502 | 2-MERCAPTO-3-BUTANOL |
| refractive index | n |
| 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 |
| JECFA Number | 546 |
| CAS DataBase Reference | 37887-04-0(CAS DataBase Reference) |
Safety information for 2-Mercapto-3-butanol
| Signal word | Warning |
| Pictogram(s) |
![]() Flame Flammables GHS02 ![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2-Mercapto-3-butanol
New Products
4-Nitrobenzoic acid p-Tolualdehyde 4-Chlorobenzaldehyde 2-Fluorobenzaldehyde Diethylene glycol monomethyl ether 3-Chlorobenzaldehyde N5-(2-aminoethyl)pyridine-2,5-diamine hydrochloride Ornidazole EP impurity C N-Nitroso Desloratadine Domperidone Impurity Valsartan Desalkyl Clomiphene benzophenone analog 3-(2-Chloroacetyl)pyridine hydrochloride 5,7-Dichloro-3H-Imidazo(4,5b)Pyridine 4-Piperidinecarboxylic Acid Ethyl Ester 2-Chloro-3-Fluoro-4-Iodopyridine 5-Amino-2,4-dichloropyridine 3,5-Dibromo-2-NitropyridineRelated products of tetrahydrofuran








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