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
等级
certified reference material
pharmaceutical secondary standard
质量水平
Agency
traceable to BP 788
traceable to Ph. Eur. E0900000
traceable to USP 1239005
API类
ergocalciferol
CofA
current certificate can be downloaded
技术
HPLC: suitable
gas chromatography (GC): suitable
mp
114-118 °C (lit.)
应用
clinical testing
包装形式
neat
储存温度
-10 to -25°C
SMILES字符串
CC(C)[C@@H](C)/C=C/[C@@H](C)[C@@]1([H])CC[C@@]([C@]1(C)CCC/2)([H])C2=C\C=C(C[C@@H](O)CC3)/C3=C
InChI
1S/C28H44O/c1-19(2)20(3)9-10-22(5)26-15-16-27-23(8-7-17-28(26,27)6)12-13-24-18-25(29)14-11-21(24)4/h9-10,12-13,19-20,22,25-27,29H,4,7-8,11,14-18H2,1-3,5-6H3/b10-9+,23-12+,24-13-/t20-,22+,25-,26+,27-,28+/m0/s1
InChI key
MECHNRXZTMCUDQ-RKHKHRCZSA-N
基因信息
human ... VDR(7421)
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一般描述
应用
分析说明
其他说明
附注
警示用语：
Danger
危险分类
Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - STOT RE 1 Oral
储存分类代码
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
实验方案
Separation of Ergocalciferol (D2), analytical standard; Cholecalciferol (D3), analytical standard
Ascentis Express C18 is suitable for routine analysis of fat-soluble vitamins D2 and D3, providing optimized chromatograms.
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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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