Methyl propyl disulfide

CAS NO.：2179-60-4
Empirical Formula: C4H10S2
Molecular Weight: 122.25
MDL number: MFCD00013400
EINECS: 218-551-2
SAFETY DATA SHEET (SDS)
Update Date: 2024-07-19 18:29:52

What is Methyl propyl disulfide?

Description

Methyl propyl disulfide has an odor and taste reminiscent of cooked onion. May be prepared from Bunte salt and the corresponding thiol.

Chemical properties

CLEAR SLIGHTLY YELLOWISH LIQUID

Chemical properties

Methyl propyl disulfide has a powerful, penetrating sulfuraceous–herbaceous, onion-like odor

Occurrence

Reported found in cabbage, onion oil, onion, garlic, shallot, leek, chive, fried potato, potato, tomato, beef, peanut, cooked beef, roast peanut and Brussels sprout

Preparation

From Bunte salt and the corresponding thiol.

Definition

ChEBI: Methyl propyl disulfide is an organic disulfide.

Taste threshold values

Taste characteristics at 0.5 ppm: onion, garlic, tomato, potato, alliaceous and vegetative

Properties of Methyl propyl disulfide

Melting point:	-101.52°C (estimate)
Boiling point:	69-71 °C/43 mmHg (lit.)
Density	0.98 g/mL at 25 °C (lit.)
refractive index	n20/D 1.508(lit.)
FEMA	3201 \| METHYL PROPYL DISULFIDE
Flash point:	109 °F
storage temp.	0-6°C
form	Liquid
Specific Gravity	0.98
color	Clear slightly yellow
Odor	at 0.10 % in propylene glycol. sulfury onion radish mustard tomato
JECFA Number	565
CAS DataBase Reference	2179-60-4(CAS DataBase Reference)
NIST Chemistry Reference	Disulfide, methyl propyl(2179-60-4)
EPA Substance Registry System	Methyl propyl disulfide (2179-60-4)

Safety information for Methyl propyl disulfide

Signal word	Warning
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H226:Flammable liquids H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.