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
E6510
Ergosterol
≥75%
Synonym(s):
3β-Hydroxy-5,7,22-ergostatriene, 5,7,22-Ergostatrien-3β-ol, Provitamin D2
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Product Name
Ergosterol, ≥75%
InChI key
DNVPQKQSNYMLRS-APGDWVJJSA-N
InChI
1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,26-,27-,28+/m0/s1
SMILES string
[H][C@@]1(CC[C@@]2([H])C3=CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)\C=C\[C@H](C)C(C)C
biological source
microbial
assay
≥75%
form
powder
color
white to off-white
mp
156-158 °C (lit.)
storage temp.
2-8°C
Quality Level
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Related Categories
1 of 4
This Item | E1100000 | PHR1512 | 1241007 |
|---|---|---|---|
| assay ≥75% | assay - | assay - | assay - |
| biological source microbial | biological source plant | biological source - | biological source - |
| form powder | form solid | form solid | form - |
| storage temp. 2-8°C | storage temp. −20°C | storage temp. 2-8°C | storage temp. 2-8°C |
| Quality Level 100 | Quality Level - | Quality Level 300 | Quality Level - |
| mp 156-158 °C (lit.) | mp 156-158 °C (lit.) | mp 156-158 °C (lit.) | mp 156-158 °C (lit.) |
Application
- as a component of yeast cell monolayer models, to study the effects of steroidal and triterpenoid saponins on the monolayers[1]
- as a standard sample, to isolate and identify a fungal metabolite fraction containing ergosterol[2]
- as a component of the culture medium to isolate the CYP51RNAi phenotype of Trypanosoma brucei gambiense, to verify ergosterol biosynthesis[3]
Biochem/physiol Actions
General description
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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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