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: 2025-06-26 21:45:57
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 | n |
| 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. |
Computed Descriptors for Methyl propyl disulfide
| InChIKey | PUCHCUYBORIUSM-UHFFFAOYSA-N |
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