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.pdf
S4751
Stearic acid
Grade I, ≥98.5% (capillary GC)
Synonym(s):
1-Heptadecanecarboxylic acid, C18:0, Cetylacetic acid, NSC 25956, NSC 261168, Octadecanoic acid, Stearophanic acid
About This Item
Recommended Products
vapor pressure
1 mmHg ( 173.7 °C)
Quality Level
type
Grade I
Assay
≥98.5% (capillary GC)
form
powder
bp
361 °C (lit.)
mp
67-72 °C (lit.)
solubility
chloroform: 100 mg/mL, clear, colorless
density
0.845 g/cm3
functional group
carboxylic acid
lipid type
saturated FAs
shipped in
ambient
storage temp.
2-8°C
SMILES string
CCCCCCCCCCCCCCCCCC(O)=O
InChI
1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)
InChI key
QIQXTHQIDYTFRH-UHFFFAOYSA-N
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Related Categories
Storage Class Code
11 - Combustible Solids
WGK
nwg
Flash Point(F)
392.0 °F - Cleveland open cup
Flash Point(C)
200 °C - Cleveland open cup
Personal Protective Equipment
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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?
1 answer-
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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Hello, what’s the difference between synthesis grade and grade 1? What kind of impurities are in both? Thank you.
1 answer-
The Synthesis grade, product 8.00673, has been tested for suitability in synthesis applications. The Grade I, product S4751, is not tested for a specific application and is intended for general laboratory use. Unfortunately, the impurities are not identified in either of these products. Limited testing on impurities is performed on the Food Grade product, W303518.
See the link below to review the specifications for this product option:
https://www.sigmaaldrich.com/specification-sheets/234/856/W303518-BULK-K____ALDRICH__.pdfHelpful?
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