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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
S7556
Sulfur trioxide pyridine complex
97%
Sinonimo/i:
NSC 75831, Pyridine sulfur trioxide complex
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About This Item
Prodotti consigliati
Saggio
97%
Impiego in reazioni chimiche
reagent type: oxidant
Stringa SMILE
O=S(=O)=O.c1ccncc1
InChI
1S/C5H5N.O3S/c1-2-4-6-5-3-1;1-4(2)3/h1-5H;
UDYFLDICVHJSOY-UHFFFAOYSA-N
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Categorie correlate
Applicazioni
- Sulfation agent
Reactant for:
- Preparation of azido anologs of pregnanolone
- Sulfate esters of morphine derivatives
- Gold nanoparticles capped with sulfate-ended ligands as anti-HIV agents
As a sulfating agent, SO3-py complex can be used for the preparation of sulfated-chitins[2], sulfated hyaluronan (HyaS) derivatives[3] and sulfated starch.[4]
Prodotti correlati
Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B
Codice della classe di stoccaggio
8A - Combustible corrosive hazardous materials
Classe di pericolosità dell'acqua (WGK)
WGK 3
Dispositivi di protezione individuale
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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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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