3-Mercapto-2-butanone
- CAS NO.：40789-98-8
- Empirical Formula: C4H8OS
- Molecular Weight: 104.17
- MDL number: MFCD00085206
- EINECS: 255-082-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-04 20:04:50
What is 3-Mercapto-2-butanone?
Chemical properties
Colorless liquid
The Uses of 3-Mercapto-2-butanone
3-Sulfanylbutan-2-one can be used to treating inflammation-??related diseases.
Preparation
From 2,4,5-trimethyl-2-ethyl-3-thiazoline with butyl and hydrolysis; from oxo-compound with sulfur or polysulfides and ammonia at room temperature.
Definition
ChEBI: 3-Mercapto-2-butanone is a ketone.
General Description
3-Mercapto-2-butanone is a sulfur-containing flavor compound mainly found in meat and meat products. It is formed by the Maillard reaction between sugars and cysteine or thiamin, which are known precursors for meat-like flavorings.
Biochem/physiol Actions
Taste at 0.3-1.0 ppm
Properties of 3-Mercapto-2-butanone
| Boiling point: | 48-49 °C/15 mmHg (lit.) |
| Density | 1.035 g/mL at 25 °C (lit.) |
| refractive index | n20/D 1.4352 |
| FEMA | 3298 | 3-MERCAPTO-2-BUTANONE |
| Flash point: | 117 °F |
| storage temp. | Refrigerator |
| form | clear liquid |
| pka | 8.38±0.10(Predicted) |
| Specific Gravity | 1.015 |
| color | Colorless to Light yellow |
| Odor | at 0.10 % in propylene glycol. sulfurous onion roasted gassy meaty |
| Sensitive | Light Sensitive |
| JECFA Number | 558 |
| CAS DataBase Reference | 40789-98-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butanone, 3-mercapto-(40789-98-8) |
| EPA Substance Registry System | 2-Butanone, 3-mercapto- (40789-98-8) |
Safety information for 3-Mercapto-2-butanone
| 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. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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 3-Mercapto-2-butanone
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