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3-Methyl-2-butanethiol

3-Methyl-2-butanethiol Basic information
Product Name:3-Methyl-2-butanethiol
Synonyms:3-Methyl-2-butyl Mercaptan;3-Methyl-2-butanethiol, 95%, remainder mainly 2-methyl-1-butanethiol;3-Methyl-2-butanethiol >=98.0%;FEMA 3304;3-Methyl-butyl-2-thiol;1,2-Dimethylpropyl hydrosulfide;2-butanethiol,3-methyl-;3-methyl-2-Butanethio
CAS:2084-18-6
MF:C5H12S
MW:104.21
EINECS:218-223-9
Product Categories:Alphabetical Listings;Flavors and Fragrances;M-N;thiol Flavor
Mol File:2084-18-6.mol
3-Methyl-2-butanethiol Structure
3-Methyl-2-butanethiol Chemical Properties
Melting point -109.95°C (estimate)
Boiling point 109-112 °C(lit.)
density 0.841 g/mL at 25 °C(lit.)
refractive index n20/D 1.444(lit.)
FEMA 3304 | 3-METHYL-2-BUTANETHIOL
Fp 60 °F
pka10.85±0.10(Predicted)
form liquid (estimate)
color Colorless to Almost colorless
Odorat 0.10 % in propylene glycol. repulsive beefy meaty
Odor Typesulfurous
Sensitive Air Sensitive
JECFA Number517
LogP2.47
CAS DataBase Reference2084-18-6(CAS DataBase Reference)
NIST Chemistry Reference2-Butanethiol, 3-methyl-(2084-18-6)
EPA Substance Registry System2-Butanethiol, 3-methyl- (2084-18-6)
Safety Information
Hazard Codes F
Risk Statements 11
Safety Statements 16-33-36-24/25
RIDADR UN 3336 3/PG 2
WGK Germany 3
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29309090
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
3-Methyl-2-butanethiol Usage And Synthesis
Description3-Methyl-2-butanethiol has a repulsive, characteristic mercaptanlike odor. Prepared from isoamyl chloride and potassium sulfhydrate; also the corresponding sodium salt can be prepared from diisopentyl-disulfide and sodium metal in liquid ammonia.
Chemical Properties3-Methyl-1-butanethiol has a repulsive, characteristic mercaptan-like odor.
Chemical PropertiesColorless liquid; offensive odor.Insoluble in water; soluble in organic solvents.
OccurrenceReported found in cooked beef.
UsesPolymerization modifier, insecticide intermediate, vulcanization accelerator intermediate, nonionic surface-active agent.
DefinitionChEBI: 3-Methyl-2-butanethiol is an alkanethiol.
PreparationFrom isoamyl chloride and potassium sulfhydrate; also, the corresponding sodium salt can be prepared from diisopentyldisulfide and sodium metal in liquid ammonia.
HazardFlammable, dangerous fire risk.
3-Methyl-2-butanethiol Preparation Products And Raw materials
2-(ACETYLTHIO)NORBORNANE PYRITHIOXIN DIHYDROCHLORIDE Methyl 2-METHYL-2-BUTANETHIOL,2-METHYL-2-BUTANETHIOL 95+% 4-OXOTETRAHYDROTHIOPHENE-2,3-DICARBOXYLIC ACID DIMETHYL ESTER 1,3-DIPHENYLBENZO[C]THIOPHENE PINANYL MERCAPTAN 5-(TERT-BUTYL)-2-(4-METHOXYPHENYL)-3-METHYL-4-THIOXO-1,3,2LAMBDA5-THIAZAPHOSPHOLAN-2-ONE 2,3-DIMETHYL-2-BUTANETHIOL DIPENTENE MERCAPTAN (S)-2-AMINO-3-METHYL-1-BUTANETHIOL-4-METHOXYTRITYL RESIN 6,8-BIS[SPIRO(1,3-DITHIOLAN-2)]BICYCLO[3.2.2]NONANE 4-METHOXY-2-METHYL-2-BUTANETHIOL,methoxymethylbutanethiol,4-methoxy-2-methyl-2-butanethiol,4-METHOXY-2-METHYL-2-BUTANETHIOL 1% IN P.G. (S)-2-AMINO-3-METHYL-1-BUTANETHIOL-4-METHOXYTRITYL RESIN (L-VAL DERIVED, 200-400 MESH, >0.4 MMOL/G) 1-Methyl-1-butanethiol 3-METHYL-1-BUTANETHIOL,2-Methyl-4-butanethiol,3-METHYL-1-BUTANETHIOL FEMA NO.-------- D-LIMONENE DIMERCAPTAN DIPENTENE DIMERCAPTAN
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