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
推薦產品
品質等級
化驗
97%
形狀
liquid
折射率
n20/D 1.607 (lit.)
bp
110-112 °C/20 mmHg (lit.)
mp
7 °C (lit.)
密度
1.427 g/mL at 25 °C (lit.)
官能基
bromo
phenyl
儲存溫度
2-8°C
SMILES 字串
Br\C=C\c1ccccc1
InChI
1S/C8H7Br/c9-7-6-8-4-2-1-3-5-8/h1-7H/b7-6+
InChI 密鑰
YMOONIIMQBGTDU-VOTSOKGWSA-N
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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?
1 answer-
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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WHAT IS THE STEREOCHEMISTRY OF THIS COMPOUND?
1 answer-
The entire product is likely planar due to the conjugated effect between the aromatic ring and C=C double bond.
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is there any possibility for decreacing the purity of the compound with out innert gases storage???
1 answer-
Yes, the purity of may decline over time if exposed to atmospheric oxygen. Storing the compound under inert gas, such as nitrogen or argon, prevents decomposition. Please see the link below to review additional information regarding the breakdown reaction published to PubChem:
https://pubchem.ncbi.nlm.nih.gov/compound/5314126#section=Non-Human-Toxicity-ValuesHelpful?
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