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
D106208
3,4-Dihydro-2H-pyran
97%
Sinonimo/i:
2,3,4-Trihydropyran, 2H-3,4-Dihydropyran, Dihydro-2H-pyran, Dihydropyran
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About This Item
Prodotti consigliati
Densità del vapore
2.9 (vs air)
Livello qualitativo
Saggio
97%
Stato
liquid
Indice di rifrazione
n20/D 1.440 (lit.)
P. ebollizione
86 °C (lit.)
Punto di fusione
−70 °C (lit.)
Densità
0.922 g/mL at 25 °C (lit.)
Stringa SMILE
C1COC=CC1
InChI
1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
BUDQDWGNQVEFAC-UHFFFAOYSA-N
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Applicazioni
- Tetrahydropyranylated product from alcohols in the presence of phenolsulfonic acid-formaldehyde resin catalyst[1].
- Tetrahydropyran derivatives by reacting pyrazoles in the presence of trifluoroacetic acid[2].
- 1,2,3,4-Tetrahydroquinoline derivatives by cation-exchange resin catalyzed Domino reaction with aromatic amines[3].
- Tetrahydroquinolines from aryl azides in the presence of FeCl3-NaI[4].
Avvertenze
Danger
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1B
Rischi supp
Codice della classe di stoccaggio
3 - Flammable liquids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
5.0 °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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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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