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471569

Sigma-Aldrich

Dimethyl disulfide

≥99.0%

Sinônimo(s):

DMDS, Methyl disulfide

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About This Item

Fórmula linear:
CH3SSCH3
Número CAS:
624-92-0
Peso molecular:
94.20
Beilstein:
1730824
Número CE:
210-871-0
Número MDL:
MFCD00008561
Código UNSPSC:
12352100
ID de substância PubChem:
24870743
NACRES:
NA.22

densidade de vapor

3.24 (vs air)

Nível de qualidade

100

pressão de vapor

22 mmHg ( 20 °C)

Ensaio

≥99.0%

temperatura de autoignição

>572 °F

Lim. expl.

16 %

índice de refração

n20/D 1.525 (lit.)

pb

109 °C (lit.)

pf

−85 °C (lit.)

densidade

1.046 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

CSSC

InChI

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

chave InChI

WQOXQRCZOLPYPM-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

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.

Informações legais

Product of Arkema Inc.

Palavra indicadora

Danger

Classificações de perigo

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

Órgãos-alvo

Central nervous system, Upper respiratory tract

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

59.0 °F - closed cup

Ponto de fulgor (°C)

15 °C - closed cup

Equipamento de proteção individual

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

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Certificados de análise (COA)

Lot/Batch Number
SHBP1385
SHBN2198
SHBM2627
STBJ6436
SHBJ5832

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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
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
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)
Gabrielle A Nevitt
Integrative and comparative biology, 51(5), 819-825 (2011-09-02)
Information transfer influences food-web dynamics in the marine environment, but infochemicals involved in these processes are only beginning to be understood. Dimethylsulfoniopropionate (DMSP) is produced by phytoplankton and other marine algae, and has been studied primarily in the context of
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