Methyl thiobutyrate Chemical Properties

Boiling point:

142-143 °C/757 mmHg (lit.)

Density 

0.966 g/mL at 25 °C (lit.)

FEMA 

3310 | METHYL THIOBUTYRATE

refractive index 

n20/D 1.461(lit.)

Flash point:

94 °F

form 

clear liquid

color 

Colorless to Light yellow

Specific Gravity

0.966

Odor

at 0.10 % in propylene glycol. sulfury cheese putrid cabbage garlic

Odor Type

cheesy

JECFA Number

484

BRN 

1848987

LogP

1.79

CAS DataBase Reference

2432-51-1(CAS DataBase Reference)

NIST Chemistry Reference

Butanethioic acid, S-methyl ester(2432-51-1)

EPA Substance Registry System

Butanethioic acid, S-methyl ester (2432-51-1)

Safety Information

Hazard Codes 

Xi

Risk Statements 

10-36/37/38

Safety Statements 

16-26-36/37/39-37/39

RIDADR 

UN 1993 3/PG 3

WGK Germany 

3

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29309090

MSDS

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Methyl thiobutyrate Usage And Synthesis

Description

Methyl thiobutyrate has a putrid, rancid, sour, pungent cabbage odor.

Chemical Properties

Methyl thiobutyrate has a putrid, rancid, sour, pungent, cabbage odor.

Chemical Properties

CLEAR YELLOW LIQUID

Occurrence

Reported found in melon, strawberry, cheeses, fish oil, hop oil and shrimp

Definition

ChEBI: S-Methyl butanethioate is a thiocarboxylic ester.

Aroma threshold values

Aroma characteristics at 1.0% EtoH: sulfureous, egg and cheese notes, tomato, tropical fruit top notes

Taste threshold values

Taste characteristics at 5 ppm: musty, sulfureous, limburger-type cheese top notes, metallic cheese body

General Description

The synthesis of short chain S-methyl thioesters (S-methyl thiobutyrate) has been investigated in Geotrichum candidum strain GcG.

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