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
85769
Methyl stearate
analytical standard
Promotion Available
Synonym(s):
Methyl octadecanoate, Stearic acid methyl ester
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 g | Available to ship TODAYfromMILWAUKEE | $69.60 |
5 g | Available to ship TODAYfromMILWAUKEE | $111.00 |
About This Item
$69.60
Available to ship TODAYDetails
grade
analytical standard
Quality Segment
assay
≥99.0% (GC)
shelf life
limited shelf life, expiry date on the label
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
bp
181-182 °C/4 mmHg (lit.)
mp
37-41 °C (lit.)
format
neat
functional group
ester
shipped in
ambient
storage temp.
room temp
SMILES string
CCCCCCCCCCCCCCCCCC(=O)OC
InChI
1S/C19H38O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19(20)21-2/h3-18H2,1-2H3
InChI key
HPEUJPJOZXNMSJ-UHFFFAOYSA-N
General description
Application
Other Notes
The collision cross section (CCS) measurement was provided by Waters Corporation, using the SYNAPT XS mass spectrometer.
For a description and overview of how ion mobility enables the measurement of the CCS of an ion visit ims.waters.com.
Further information on the SYNAPT XS mass spectrometer can be found on the IMS microsite and product webpage.
TWCCS measurements are expected to be within 2% of this reference value.
P/N 85769 is part of the Waters Extractables & Leachables UNIFI scientific library which can be downloaded from Waters Marketplace.
1 of 1
This Item | |||
|---|---|---|---|
| description analytical standard | description Pharmaceutical Secondary Standard; Certified Reference Material | description ~99% (GC) | description ≥96%, FG |
| technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) - | technique(s) - |
| format neat | format neat | format - | format - |
| Quality Level 100 | Quality Level 300 | Quality Level 200 | Quality Level 300 |
| grade analytical standard | grade pharmaceutical secondary standard, certified reference material | grade - | grade FG, Halal |
| assay ≥99.0% (GC) | assay - | assay ~99% (GC) | assay ≥96% |
| storage temp. room temp | storage temp. 2-8°C | storage temp. −20°C | storage temp. - |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
230.0 °F - closed cup
flash_point_c
110.0 °C - closed cup
ppe
dust mask type N95 (US), 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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