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/418/501/product-dating-information-06-25-mk.pdf
328510
4′-Pentyl-4-biphenylcarbonitril
liquid crystal (nematic), 98%
Synonym(e):
4-Cyano-4-pentylbiphenyl, 4-Pentyl-4-cyanobiphenyl, 5CB
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Produktname
4′-Pentyl-4-biphenylcarbonitril, liquid crystal (nematic), 98%
InChI key
HHPCNRKYVYWYAU-UHFFFAOYSA-N
InChI
1S/C18H19N/c1-2-3-4-5-15-6-10-17(11-7-15)18-12-8-16(14-19)9-13-18/h6-13H,2-5H2,1H3
SMILES string
CCCCCc1ccc(cc1)-c2ccc(cc2)C#N
assay
98%
form
liquid crystal (nematic)
refractive index
n20/D 1.532 (lit.)
bp
140-150 °C/0.5 mmHg (lit.)
density
1.008 g/mL at 25 °C (lit.)
Quality Level
Verwandte Kategorien
1 of 4
Dieser Artikel | 330817 | 338680 | 338656 |
|---|---|---|---|
| assay 98% | assay 98% | assay 98% | assay 96% |
| form liquid crystal (nematic) | form liquid crystal | form liquid crystal (nematic) | form liquid crystal (nematic) |
| refractive index n20/D 1.532 (lit.) | refractive index - | refractive index - | refractive index - |
| bp 140-150 °C/0.5 mmHg (lit.) | bp - | bp - | bp - |
| density 1.008 g/mL at 25 °C (lit.) | density - | density - | density - |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level - |
Application
General description
signalword
Warning
hcodes
Hazard Classifications
Skin Sens. 1
Lagerklasse
10 - Combustible liquids
wgk
WGK 3
ppe
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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