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
Fortfahren mit
95220
Ergocalciferol
≥98.0% (sum of enantiomers, HPLC)
Synonym(e):
Bestrahltes Ergosterol, Calciferol, Ercalciol, Ergosterol, bestrahlt, Vitamin D2
Größe auswählen
| Ihnen/SKU | Verfügbarkeit | Preis |
|---|---|---|
1 g | Warenkorb auf Verfügbarkeit prüfen | € 89,00 |
5 g | Warenkorb auf Verfügbarkeit prüfen | € 286,00 |
Über diesen Artikel
biological source
synthetic
Quality Segment
assay
≥98.0% (sum of enantiomers, HPLC)
form
powder
optical activity
[α]20/D +105±2°, c = 4% in ethanol
color
colorless to white
mp
114-118 °C
storage temp.
2-8°C
SMILES string
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
Gene Information
human ... VDR(7421)
General description
Application
Biochem/physiol Actions
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| assay ≥98.0% (sum of enantiomers, HPLC) | assay - | assay ≥97% | assay - |
| biological source synthetic | biological source - | biological source synthetic (organic) | biological source - |
| form powder | form powder | form powder | form - |
| storage temp. 2-8°C | storage temp. −20°C | storage temp. 2-8°C | storage temp. −20°C |
| mp 114-118 °C | mp 114-118 °C (lit.) | mp 114-118 °C (lit.) | mp 114-118 °C (lit.) |
| color colorless to white | color white | color white to off-white | color white |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - STOT RE 1 Oral
Lagerklasse
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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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 recommended method for storing stock solutions of item 95220, Ergocalciferol dissolved in ethanol?
1 answer-
For short-term storage (days to weeks), it is recommended to store the stock solution of item 95220, Ergocalciferol dissolved in ethanol, at 0 - 4°C. For long-term storage, the stock solution should be sealed and stored below -20°C. Typically, the stock solution can be kept for several months. Before use, it is advisable to allow the vial to reach room temperature for at least an hour.
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