Dimethyl disulfide
CAS 624-92-0
EC 210-871-0
Formula C2H6S2
MW 94.2 g/mol
Flavors & Fragrances Food & NutritionPharmaceuticals & HealthcareBiotechnology & Life Sciences Preservation & BiocideFlavoring & AcidulantAntioxidant & StabilizerCatalysis
Description
Dimethyl disulfide (DMDS, CAS 624-92-0) is an organosulfur compound commercially known under trade names including Paladin and Sulfa-hitech, with the abbreviated notation (CH3S)2. It carries no assigned E-code and is registered under EC 210-871-0, compliant with REACH regulations across European markets.
In food flavoring, DMDS contributes characteristic sulfurous, onion-like notes at trace concentrations and holds FEMA 3536 status for use as a flavorant. In agriculture and soil treatment, it functions as a soil fumigant by releasing reactive sulfur species that disrupt microbial and nematode metabolism. It also serves as a sulfiding agent in petroleum refining, activating hydrodesulfurization catalysts by pre-sulfiding metal sites.
DMDS is available in technical and food-grade qualities, with food applications governed by FCC specifications and FEMA GRAS status. It is supplied in bulk liquid format and smaller drum quantities. Procurement must account for its ADR classification as a flammable, malodorous substance requiring appropriate transport and storage controls.
In food flavoring, DMDS contributes characteristic sulfurous, onion-like notes at trace concentrations and holds FEMA 3536 status for use as a flavorant. In agriculture and soil treatment, it functions as a soil fumigant by releasing reactive sulfur species that disrupt microbial and nematode metabolism. It also serves as a sulfiding agent in petroleum refining, activating hydrodesulfurization catalysts by pre-sulfiding metal sites.
DMDS is available in technical and food-grade qualities, with food applications governed by FCC specifications and FEMA GRAS status. It is supplied in bulk liquid format and smaller drum quantities. Procurement must account for its ADR classification as a flammable, malodorous substance requiring appropriate transport and storage controls.
Physical Properties
| Melting Point | -85 °C |
| Boiling Point | 109.8 °C |
| Density | 1.0625 g/cm³ @ Temp: 20 °C |
| Flash Point | 76 °F |
| Appearance | colourless to yellow liquid with a very unpleasant smell |
| Color | Clear yellow |
| Odor | at 0.10 % in propylene glycol. sulfurous vegetable cabbage onion |
| Form | Liquid |
| Water Solubility | <0.1 g/100 mL at 20 ºC |
| Vapor Pressure | 22 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.525(lit.) |
| Log P | 1.91 at 20℃ |
Safety & Handling (Learn More)
Danger GHS02 GHS06 GHS08 GHS09 GHS07
H
H225H301H302H312H315H317H319H320H330H331H335H336H361H370H372H373H400H401H410H411
P
P203P210P233P240P241P242P243P260P261P264P270P271P272P273P280P284P316P317P318P319P320P321P330P391P405P501P264+P265P301+P316P301+P317P302+P352P304+P340P308+P316P332+P317P333+P317P337+P317P362+P364P370+P378P403+P233P403+P235P303+P361+P353P305+P351+P338
Trade & Regulatory
| HS Code | 29309070 |
| UN Number | 2381 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 2 |
Other Names
(methyldisulfanyl)methaneSulfa-hitechMethyldisulfideDMDS(CH3S)2Paladin
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Raw Materials
Derivatives
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