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471569

Sigma-Aldrich

Dimethyl disulfide

≥99.0%

Sinonimo/i:

DMDS, Methyl disulfide

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About This Item

Formula condensata:
CH3SSCH3
Numero CAS:
624-92-0
Peso molecolare:
94.20
Beilstein:
1730824
Numero CE:
210-871-0
Numero MDL:
MFCD00008561
Codice UNSPSC:
12352100
ID PubChem:
24870743
NACRES:
NA.22

Densità del vapore

3.24 (vs air)

Livello qualitativo

100

Tensione di vapore

22 mmHg ( 20 °C)

Saggio

≥99.0%

Temp. autoaccensione

>572 °F

Limite di esplosione

16 %

Indice di rifrazione

n20/D 1.525 (lit.)

P. ebollizione

109 °C (lit.)

Punto di fusione

−85 °C (lit.)

Densità

1.046 g/mL at 25 °C (lit.)

Gruppo funzionale

disulfide

Stringa SMILE

CSSC

InChI

1S/C2H6S2/c1-3-4-2/h1-2H3
WQOXQRCZOLPYPM-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

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.

Applicazioni

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.

Note legali

Product of Arkema Inc.

Avvertenze

Danger

Classi di pericolo

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

Organi bersaglio

Central nervous system, Upper respiratory tract

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

59.0 °F - closed cup

Punto d’infiammabilità (°C)

15 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (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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