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
P1504
TWEEN® 40
viscous liquid
Synonym(s):
Polyoxyethylenesorbitan monopalmitate
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About This Item
description
non-ionic
Quality Segment
assay
~90.0% (GC)
form
viscous liquid
mol wt
estimated mol wt 1277
composition
Palmitic acid, ~90% (balance primarily stearic acid)
technique(s)
DNA extraction: suitable, RNA extraction: suitable, cell culture | mammalian: suitable, protein purification: suitable
CMC
0.027 (20-25°C)
HLB
15.6
SMILES string
O1C(C(C(C1)OCCO)OCCO)C(OCCO)COCCOC(=O)CCCCCCCCCCC
InChI
1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3
InChI key
HMFKFHLTUCJZJO-UHFFFAOYSA-N
General description
Application
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| technique(s) DNA extraction: suitable, cell culture | mammalian: suitable, RNA extraction: suitable, protein purification: suitable | technique(s) - | technique(s) - | technique(s) - |
| form viscous liquid | form viscous liquid | form liquid | form liquid |
| assay ~90.0% (GC) | assay ~90.0% (GC) | assay - | assay - |
| HLB 15.6 | HLB 15.6 | HLB - | HLB - |
| CMC 0.027 (20-25°C) | CMC 0.027 (20-25°C) | CMC - | CMC - |
| description non-ionic | description non-ionic | description - | description RTECS - TR7400000 |
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Storage Class
10 - Combustible liquids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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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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