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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
Beilstein:
1730824
Numéro CE :
210-871-0
Numéro MDL:
MFCD00008561
Code UNSPSC :
12352100
ID de substance PubChem :
24870743
Nomenclature NACRES :
NA.22
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Densité de vapeur

3.24 (vs air)

Niveau de qualité

100

Pression de vapeur

22 mmHg ( 20 °C)

Essai

≥99.0%

Température d'inflammation spontanée

>572 °F

Limite d'explosivité

16 %

Indice de réfraction

n20/D 1.525 (lit.)

pb

109 °C (lit.)

Pf

−85 °C (lit.)

Densité

1.046 g/mL at 25 °C (lit.)

Groupe fonctionnel

disulfide

Chaîne SMILES 

CSSC

InChI

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

Clé InChI

WQOXQRCZOLPYPM-UHFFFAOYSA-N

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Catégories apparentées

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.[1] 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.[2] 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.[3]

Application

Dimethyl disulfide (DMDS) may be used to derivatize alkenes for the determination of position of double bond by MS.[2] 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.[4]

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

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Certificats d'analyse (COA)

Lot/Batch Number
SHBS4274
STBL3633
STBL1784
STBL0903
STBK7594

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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
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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Protocoles

GC Analysis of Pyrazines in Peanut Butter

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

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 réponse

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 réponse

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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