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
320293
Dimethyl sulfate
≥99%
Sinonimo/i:
Sulfuric acid dimethyl ester
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About This Item
Prodotti consigliati
Densità del vapore
4.3 (vs air)
Livello qualitativo
Tensione di vapore
0.7 mmHg ( 25 °C)
Saggio
≥99%
Stato
liquid
Temp. autoaccensione
923 °F
Indice di rifrazione
n20/D 1.386 (lit.)
P. ebollizione
188 °C (lit.)
Punto di fusione
−32 °C (lit.)
Densità
1.333 g/mL at 25 °C (lit.)
Stringa SMILE
COS(=O)(=O)OC
InChI
1S/C2H6O4S/c1-5-7(3,4)6-2/h1-2H3
VAYGXNSJCAHWJZ-UHFFFAOYSA-N
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Applicazioni
It can also be used as a reagent:
- For the preparation of quaternary ammonium acrylic monomer as a potent antibacterial agent by the quaternization of 2-dimethylamino ethyl methacrylate.[3]
- Along with dimethyl sulfoxide for the synthesis of epoxides from aldehydes and ketones via formation of trimethylsulfonium cation.[4]
- To prepare an oxygenate additive for diesel by the methylation of glycerol.[5]
Prodotti correlati
Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1
Codice della classe di stoccaggio
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
181.4 °F - closed cup
Punto d’infiammabilità (°C)
83 °C - closed cup
Dispositivi di protezione individuale
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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