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Merck

471569

Dimethyl disulfide

≥99.0%

Synonym(s):

DMDS, Methyl disulfide

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About This Item

Linear Formula:
CH3SSCH3
CAS Number:
624-92-0
Molecular Weight:
94.20
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24870743
EC Number:
210-871-0
Beilstein/REAXYS Number:
1730824
MDL number:
MFCD00008561
Assay:
≥99.0%

Key Documents

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InChI key

WQOXQRCZOLPYPM-UHFFFAOYSA-N

InChI

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

SMILES string

CSSC

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.)

functional group

disulfide

Quality Level

100

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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.

Legal Information

Product of Arkema Inc.

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Danger

Hazard Classifications

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

target_organs

Central nervous system, Upper respiratory tract

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

59.0 °F - closed cup

flash_point_c

15 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT4303
SHBT1857
SHBS8498
SHBS4274
STBL3633

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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
L Arellano-García et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 66(8), 1641-1646 (2012-08-22)
The aim of this paper was to evaluate the performance of biotrickling filters (BTFs) for treating low concentrations of dimethyl disulfide (DMDS), using different bacterial consortia adapted to consume reduced sulfur compounds under alkaline (pH ≈ 10) or neutral (pH
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