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
D2659
cis-4,7,10,13,16,19-Docosahexaenoic acid methyl ester
≥98%
Synonym(s):
Methyl 4,7,10,13,16,19-docosahexaenoate
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| Size/SKU | Availability | Price |
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About This Item
biological source
synthetic (organic)
Quality Segment
assay
≥98%
form
liquid
refractive index
n20/D 1.498 (lit.)
density
0.921 g/mL at 25 °C (lit.)
functional group
ester
lipid type
omega FAs
shipped in
ambient
storage temp.
−20°C
SMILES string
CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCC(=O)OC
InChI
1S/C23H34O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23(24)25-2/h4-5,7-8,10-11,13-14,16-17,19-20H,3,6,9,12,15,18,21-22H2,1-2H3/b5-4-,8-7-,11-10-,14-13-,17-16-,20-19-
InChI key
VCDLWFYODNTQOT-JDPCYWKWSA-N
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥98% | assay ≥98% | assay ≥98% (capillary GC) | assay ≥97% |
| functional group ester | functional group ester | functional group ester | functional group ester |
| biological source synthetic (organic) | biological source synthetic (organic) | biological source - | biological source - |
| shipped in ambient | shipped in ambient | shipped in ambient | shipped in ambient |
| form liquid | form liquid | form liquid | form liquid |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
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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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