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

Flash point:

60 °F

form 

liquid (estimate)

pka

10.85±0.10(Predicted)

color 

Colorless to Almost colorless

Odor

at 0.10 % in propylene glycol. repulsive beefy meaty

Odor Type

sulfurous

Sensitive 

Air Sensitive

JECFA Number

517

LogP

2.47

CAS DataBase Reference

2084-18-6(CAS DataBase Reference)

NIST Chemistry Reference

2-Butanethiol, 3-methyl-(2084-18-6)

EPA Substance Registry System

2-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

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

3-Methyl-2-butanethiol Usage And Synthesis

Description

3-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 Properties

3-Methyl-1-butanethiol has a repulsive, characteristic mercaptan-like odor.

Chemical Properties

Colorless liquid; offensive odor.Insoluble in water; soluble in organic solvents.

Occurrence

Reported found in cooked beef.

Uses

Polymerization modifier, insecticide intermediate, vulcanization accelerator intermediate, nonionic surface-active agent.

Preparation

From isoamyl chloride and potassium sulfhydrate; also, the corresponding sodium salt can be prepared from diisopentyldisulfide and sodium metal in liquid ammonia.

Definition

ChEBI: 3-Methyl-2-butanethiol is an alkanethiol.

Hazard

Flammable, dangerous fire risk.

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