Dimethyl disulfide
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Dimethyl disulfide
structure -
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CAS No:
624-92-0
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Formula:
C2H6S2
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Chemical Name:
Dimethyl disulfide
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Synonyms:
Disulfide,dimethyl;Methyl disulfide;Dimethyl disulfide;2,3-Dithiabutane;(Methyldithio)methane;Dimethyl disulphide;Sulfa-Hitech;NSC 9370;DMDS;Paladin;1,2-Dimethyldisulfane;(Methyldisulfanyl)methane
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CAS No:
Description
Light yellow transparent liquid, malodorous, insoluble in water, Soluble in ethanol, ethyl ether and acetic acid. Methyl disulfide has a diffuse, intense onion odor. This compound is nonlacrimatory colourless to yellow liquid with a very unpleasant smell
Characteristics
50.60000
1.62740
Dimethyl disulfide appears as a colorless oily liquid with a garlic-like odor. Denser than water and slightly soluble in water. Vapors heavier than air. May irritate skin and eyes. Used to make other chemicals.
1.0625 g/cm3 @ Temp: 20 °C
-85 °C
109.8 °C
15ºC
1.5243-1.5263
Solubility in water, g/l at 20°C: 2.5 (poor)
Flammables area
22 mm Hg ( 20 °C)
3.24 (vs air)
LD50 orally in Rabbit: 290 - 500 mg/kg
vol% in air: 1.16
Garlic-like
Safety Information
II
3
UN 2381
2
R11; R22; R26; R36/37/38; R51/53
S16-S26-S28-S36/37/39-S38-S45-S61
JO1927500
F
Fireproof. Well closed. Separated from oxidants. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Stable. Incompatible with strong bases, strong oxidizing agents, strong reducing agents. Flammable.
P210-P261-P273-P280-P304 + P340 + P312-P403 + P233
H225-H302-H319-H331-H335-H411
Dimethyl disulfide Use and Manufacturing
Used as a solvent and pesticide intermediate, it is also the main raw material of methanesulfonyl chloride and methanesulfonic acid products; GB2760-1996 stipulates that it is allowed to use food brush fragrance. Purpose Dimethyl disulfide is also known as dimethyl disulfide. It is used to synthesize the intermediates of organophosphorus insecticides fenthion and mitamiphos. Phenol is also used as a solvent and catalyst purifier. Used as solvent, catalyst passivator, pesticide intermediate, coking inhibitor, etc. Dimethyl disulfide reacts with cresol to produce 2-methyl-4-hydroxyanisole, which is then condensed with O,O-dimethyl sulfide phosphoryl chloride in alkaline medium to obtain fenthion. This is a high-efficiency and low-toxicity organophosphorus insecticide with excellent control effects on rice stem borers, soybean heartworm and gadfly larvae. It can also be used as veterinary medicine to wipe out bull fly maggots and cattle ticks.
Computed Properties
Molecular Weight:94.20
XLogP3:1.8
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:93.99109254
Monoisotopic Mass:93.99109254
Topological Polar Surface Area:50.6
Heavy Atom Count:4
Complexity:6
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Price Analysis
- Data: 2026-09-04
- Price: 17200.00Yuan/mt
- Change: 3200.0
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