Methyl propyl trisulfide
- CAS NO.：17619-36-2
- Empirical Formula: C4H10S3
- Molecular Weight: 154.32
- MDL number: MFCD00040073
- EINECS: 241-594-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 23:43:24
What is Methyl propyl trisulfide?
Description
Methyl propyl trisulfide has a powerful, penetrating warm, herbaceous odor somewhat reminiscent of onion. May be prepared by an adaption of Westlake’s procedure.
Chemical properties
Methyl propyl trisulfide has a powerful, penetrating, warm, herbaceous odor; somewhat reminiscent of onion
Occurrence
Reported found in cocoa, onion oil, onion, shallot, leek, chive, scallion, fried potato and cocoa
Preparation
By an adaption of Westlake’s procedure.
Definition
ChEBI: Methyl propyl trisulfide is an organic trisulfide.
Taste threshold values
Taste characteristics at 1 ppm: onion, garlic, fresh and metallic with a cheese nuance.
Properties of Methyl propyl trisulfide
| Boiling point: | 220.4±23.0 °C(Predicted) |
| Density | 1.107 g/mL at 25 °C |
| refractive index | n20/D1.566 |
| FEMA | 3308 | METHYL PROPYL TRISULFIDE |
| Flash point: | 76℃ |
| Odor | at 0.10 % in propylene glycol. sulfurous onion garlic green metallic |
| JECFA Number | 584 |
| NIST Chemistry Reference | Methyl n-propyl trisulfide(17619-36-2) |
| EPA Substance Registry System | Trisulfide, methyl propyl (17619-36-2) |
Safety information for Methyl propyl trisulfide
| Signal word | Danger |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H370:Specific target organ toxicity, single exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. 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 trisulfide
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