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3-Mercapto-2-butanone Structure

3-Mercapto-2-butanone

Chemical Properties

Boiling point 48-49 °C/15 mmHg (lit.)
Density  1.035 g/mL at 25 °C (lit.)
FEMA  3298 | 3-MERCAPTO-2-BUTANONE
refractive index  n20/D 1.4352
Flash point 117 °F
storage temp.  Refrigerator
form  clear liquid
pka 8.38±0.10(Predicted)
color  Colorless to Light yellow
Specific Gravity 1.015
Odor at 0.10 % in propylene glycol. sulfurous onion roasted gassy meaty
Odor Type sulfurous
Sensitive  Light Sensitive
JECFA Number 558
LogP 0.67
CAS DataBase Reference 40789-98-8(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) 3-MERCAPTO-2-BUTANONE
EWG's Food Scores 1
FDA UNII 99G79565PJ
NIST Chemistry Reference 2-Butanone, 3-mercapto-(40789-98-8)
EPA Substance Registry System 2-Butanone, 3-mercapto- (40789-98-8)
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Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H226-H315-H319-H335
Precautionary statements P210-P233-P240-P241-P303+P361+P353-P305+P351+P338
Hazard Codes  Xi
Risk Statements  10-36/37/38
Safety Statements  26-36
RIDADR  UN 1993 3/PG 2
WGK Germany  3
RTECS  EL9050000
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29309090
NFPA 704:
2
2 0

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