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
R2500
all trans-Retinal
powder, ≥98%
Synonym(s):
Vitamin A aldehyde
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biological source
synthetic (organic)
Quality Level
assay
≥98%
form
powder
technique(s)
HPLC: suitable
color
yellow
mp
62-64 °C
shipped in
dry ice
storage temp.
−20°C
SMILES string
[H]C(=O)\C=C(C)\C=C\C=C(C)\C=C\C1=C(C)CCCC1(C)C
InChI
1S/C20H28O/c1-16(8-6-9-17(2)13-15-21)11-12-19-18(3)10-7-14-20(19,4)5/h6,8-9,11-13,15H,7,10,14H2,1-5H3/b9-6+,12-11+,16-8+,17-13+
InChI key
NCYCYZXNIZJOKI-OVSJKPMPSA-N
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Related Categories
1 of 4
This Item | R5754 | 95144 | 17772 |
|---|---|---|---|
| technique(s) HPLC: suitable | technique(s) HPLC: suitable | technique(s) - | technique(s) - |
| assay ≥98% | assay ≥95% (HPLC) | assay ≥97.5% (HPLC) | assay ≥95.0% (HPLC) |
| biological source synthetic (organic) | biological source - | biological source synthetic | biological source synthetic |
| form powder | form powder | form (Powder or Powder with Lumps) | form (Powder or Crystal with Lumps) |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
| mp 62-64 °C | mp 56-58 °C (lit.) | mp 56-61 °C, 61-63 °C (lit.) | mp 61-63 °C (lit.) |
General description
Application
Biochem/physiol Actions
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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