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
17937
25-Hydroxyvitamin D2
≥95.0% (HPLC)
Synonym(s):
25-Hydroxycalciferol, 25-Hydroxyergocalciferol, Ercalcidiol
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
biological source
synthetic
Quality Segment
assay
≥95.0% (HPLC)
form
crystalline powder
color
white
storage temp.
−20°C
SMILES string
[H][C@@]12CC[C@H]([C@H](C)\C=C\[C@H](C)C(C)(C)O)[C@@]1(C)CCC/C2=C\C=C3\C[C@@H](O)CCC3=C
InChI
1S/C28H44O2/c1-19-10-14-24(29)18-23(19)13-12-22-8-7-17-28(6)25(15-16-26(22)28)20(2)9-11-21(3)27(4,5)30/h9,11-13,20-21,24-26,29-30H,1,7-8,10,14-18H2,2-6H3/b11-9+,22-12+,23-13-/t20-,21+,24+,25-,26+,28-/m1/s1
InChI key
KJKIIUAXZGLUND-ICCVIKJNSA-N
Biochem/physiol Actions
1 of 1
This Item | |||
|---|---|---|---|
| biological source synthetic | biological source synthetic | biological source - | biological source - |
| assay ≥95.0% (HPLC) | assay ≥99.0% (HPLC) | assay 98% (CP) | assay 98% (CP) |
| form crystalline powder | form powder or crystals | form powder | form solution |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
| color white | color white to off-white | color white to off-white | color colorless |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - STOT RE 1 Oral
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 17937-1MG | 04061838754233 |
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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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