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Merck

471569

Sigma-Aldrich

Dimethyl disulfide

≥99.0%

Sinónimos:

DMDS, Methyl disulfide

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About This Item

Fórmula lineal:
CH3SSCH3
Número de CAS:
Peso molecular:
94.20
Beilstein:
1730824
Número CE:
Número MDL:
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
NACRES:
NA.22

densidad de vapor

3.24 (vs air)

Nivel de calidad

presión de vapor

22 mmHg ( 20 °C)

Análisis

≥99.0%

temp. de autoignición

>572 °F

lim. expl.

16 %

índice de refracción

n20/D 1.525 (lit.)

bp

109 °C (lit.)

mp

−85 °C (lit.)

densidad

1.046 g/mL at 25 °C (lit.)

cadena SMILES

CSSC

InChI

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

Clave InChI

WQOXQRCZOLPYPM-UHFFFAOYSA-N

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Descripción general

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.

Aplicación

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.

Información legal

Product of Arkema Inc.

Palabra de señalización

Danger

Clasificaciones de peligro

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

Órganos de actuación

Central nervous system, Upper respiratory tract

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

59.0 °F - closed cup

Punto de inflamabilidad (°C)

15 °C - closed cup

Equipo de protección personal

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


Certificados de análisis (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
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
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)
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

Protocolos

Separation of various pyrazines and sulfur compounds including carbon disulfide and dimethyl disulfide.

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