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471569

Sigma-Aldrich

Dimethyl disulfide

≥99.0%

Synonyme(s) :

DMDS, Methyl disulfide

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About This Item

Formule linéaire :
CH3SSCH3
Numéro CAS:
624-92-0
Poids moléculaire :
94.20
Numéro Beilstein :
1730824
Numéro CE :
210-871-0
Numéro MDL:
MFCD00008561
Code UNSPSC :
12352100
ID de substance PubChem :
24870743
Nomenclature NACRES :
NA.22

Densité de vapeur

3.24 (vs air)

Niveau de qualité

100

Pression de vapeur

22 mmHg ( 20 °C)

Pureté

≥99.0%

Température d'inflammation spontanée

>572 °F

Limite d'explosivité

16 %

Indice de réfraction

n20/D 1.525 (lit.)

Point d'ébullition

109 °C (lit.)

Pf

−85 °C (lit.)

Densité

1.046 g/mL at 25 °C (lit.)

Chaîne SMILES 

CSSC

InChI

1S/C2H6S2/c1-3-4-2/h1-2H3

Clé InChI

WQOXQRCZOLPYPM-UHFFFAOYSA-N

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Description générale

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.

Informations légales

Product of Arkema Inc.

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1 - STOT SE 1 Inhalation - STOT SE 3

Organes cibles

Central nervous system, Upper respiratory tract

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

59.0 °F - closed cup

Point d'éclair (°C)

15 °C - closed cup

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificats d'analyse (COA)

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Adsorption state of dimethyl disulfide on Au?111?: Evidence for adsorption
as thiolate at the bridge site
Hayashi T, et al.
J. Chem. Phys. , 114(17), 7615-7621 (2001)
C W Moss et al.
Journal of clinical microbiology, 27(7), 1467-1470 (1989-07-01)
Location of the double-bond position of monounsaturated fatty acids in Campylobacter cryaerophila was accomplished with combined gas chromatography-mass spectrometry analysis of dimethyl disulfide (DMDS) derivatives. The monoenoic fatty acids from whole bacterial cells were converted to methyl esters and then
Determination of double bond position in mono-unsaturated acetates by mass spectrometry of dimethyl disulfide adducts.
Buser HR, et al.
Analytical Chemistry, 55(6), 818-822 (1983)
Lu Wenjing et al.
Waste management (New York, N.Y.), 42, 74-81 (2015-05-23)
Temporal variation (seasonal and daily) of odor emission on the working face of a large sanitary landfill in China was characterized through a 2 yearlong case study. Odor pollution was most serious in spring and autumn, while lower odor concentrations
P Jäppinen et al.
Archives of toxicology, 67(2), 104-106 (1993-01-01)
Dimethyl sulfide in breath was determined by the gas chromatographic method in 14 persons exposed to organic reduced sulfur compounds in sulfate pulp mills. Dimethyl sulfide concentrations in breath (range 0.04-0.69 cm3/m3 were compared to the combined workplace concentrations of
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