Sourcing Dimethyl Sulfide (DMS)? ChemicalDekho connects you with specialized organosulfur manufacturers. Secure high-purity sulfiding agents for hydrotreating catalysts and gas odorization.
Dimethyl Sulfide (CAS 75-18-3) is critical for oil refineries. It is injected into hydrodesulfurization (HDS) units to 'Presulfide' the Cobalt/Molybdenum catalysts, activating them. In the flavor industry, in tiny amounts (ppb), it provides the characteristic taste of cooked corn, cabbage, and seafood. It is also used to detect gas leaks due to its potent smell.
Listings ensure supply in sealed, odor-controlled cylinders or tankers to prevent environmental nuisance.
Catalyst Presulfiding agent
Odorant for natural gas/LPG
Corn/Seafood flavor component
DMSO production
Ethylene furnace passivation
Organic synthesis solvent
Leading petrochemical producers
Ready stock at Ports
Compliant transport
Highly flammable liquid and vapor. Causes serious eye irritation. Stench agent (Strong unpleasant odor). May cause respiratory irritation.
YES. It has an intense smell of boiling cabbage or rotten veg. Even a tiny leak can cause panic in a neighborhood. Handling requires strict vapor control.
Refinery catalysts (CoMo/NiMo) are sold as oxides (inactive). They need Sulfur to 'wake up' (activate). DMS breaks down in the reactor to provide this Sulfur safely.
DMDS (Dimethyl Disulfide) has higher sulfur content (68% vs 51%) and is safer (higher flash point). However, DMS decomposes at lower temperatures, making it better for certain specific units.
Surprisingly, yes. It is the main smell of the sea (algae) and cooked corn. It is used as a flavor additive in soups and sauces.