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471569 Sigma-Aldrich

Dimethyl disulfide

≥99.0%

Synonym: DMDS, Methyl disulfide

  • CAS Number 624-92-0

  • Linear Formula CH3SSCH3

  • Molecular Weight 94.20

  •  Beilstein/REAXYS Number 1730824

  •  EC Number 210-871-0

  •  MDL number MFCD00008561

  •  PubChem Substance ID 24870743

  •  NACRES NA.22

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Properties

Related Categories Allium cepa (Onion), Allium sativum (Garlic), Building Blocks, Cell Biology, Chemical Synthesis,
Quality Level   100
vapor density   3.24 (vs air)
vapor pressure   22 mmHg ( 20 °C)
assay   ≥99.0%
autoignition temp.   >572 °F
expl. lim.   16 %
refractive index   n20/D 1.525 (lit.)
bp   109 °C (lit.)
mp   −85 °C (lit.)
density   1.046 g/mL at 25 °C (lit.)
SMILES string   CSSC
InChI   1S/C2H6S2/c1-3-4-2/h1-2H3
InChI key   WQOXQRCZOLPYPM-UHFFFAOYSA-N

Description

General description

Dimethyl disulfide (DMDS) is an organic dialkyl disulfide. It is one of the odorous compounds found on the working face of typical municipal solid waste landfill in China. DMDS forms adducts with mono-unsaturated acetates by addition across carbon-carbon double bonds. These adducts are useful to locate the of double bonds in long-chain mono-unsaturated acetates. Adsorption of DMDS on Au(111) surface has been investigated by the density functional theory (DFT) within a generalized gradient approximation and experimental high-resolution electron energy loss spectroscopy (HREELS) techniques.

Application

Dimethyl disulfide (DMDS) may be used to derivatize alkenes for the determination of position of double bond by MS. It may also be used to determine the location of the double-bond position of monounsaturated fatty acids in Campylobacter cryaerophila by combined GC-MS analysis.

Packaging

1 L in Sure/Seal™

25, 250 mL in Sure/Seal™

Legal Information

Product of Arkema Inc.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Target organs 
Respiratory system
RIDADR 
UN 2381 3 / PGII
WGK Germany 
WGK 3
RTECS 
JO1927500
Flash Point(F) 
59.0 °F
Flash Point(C) 
15 °C

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

GC Analysis of Pyrazines in Peanut Butter on SUPELCOWAX® 10 after SPME using 50/30 μm DVB/Carboxen/PDMS Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of Pyrazines in Peanut Butter on SUPELCOWAX® 10 after SPME using 50/30 μm DVB/Carboxen/PDMS Fiber
Keywords: Chromatography, Gas chromatography, Mass spectrometry, Purification, Separation, Size-exclusion chromatography, Solid phase microextractions

GC Analysis of Volatiles in Milk (Before and After Exposure to Sunlight) on Supel-Q™ PLOT after SPME using a 75 μm PDMS/Carboxen Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of Volatiles in Milk (Before and After Exposure to Sunlight) on Supel-Q™ PLOT after SPME using a 75 μm PDMS/Carboxen Fiber
Keywords: Chromatography, Gas chromatography, Gas chromatography mass spectrometry, Mass spectrometry, Purification, Sample preparations, Separation, Solid phase microextractions

GC Analysis of a 12-Component Sulfur Compound Mix on SLB®-IL59

From our library of Articles, Sigma-Aldrich presents GC Analysis of a 12-Component Sulfur Compound Mix on SLB®-IL59
Keywords: Chromatography, Gas chromatography, Mass selective detector, Size-exclusion chromatography

GC Analysis of a 6-Component Sulfur Gases Mix on Supel-Q™ PLOT after SPME using 75 μm Carboxen/PDMS Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of a 6-Component Sulfur Gases Mix on Supel-Q™ PLOT after SPME using 75 μm Carboxen/PDMS Fiber
Keywords: Chromatography, Gas chromatography, Mass spectrometry, Purification, Solid phase microextractions

GC Analysis of a 7-Component Sulfur Gases Mix on Supel-Q™ PLOT after SPME using 75 μm Carboxen/PDMS Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of a 7-Component Sulfur Gases Mix on Supel-Q™ PLOT after SPME using 75 μm Carboxen/PDMS Fiber
Keywords: Chromatography, Flame photometric detector, Gas chromatography, Purification, Solid phase microextractions

Peer-Reviewed Papers
15

References

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