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
S5376
Methyl stearate
~99% (GC)
Sinonimo/i:
Methyl octadecanoate, Stearic acid methyl ester
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About This Item
Prodotti consigliati
Saggio
~99% (GC)
Stato
powder
P. ebollizione
181-182 °C/4 mmHg (lit.)
Punto di fusione
37-41 °C (lit.)
Gruppo funzionale
ester
Tipo di lipide
saturated FAs
Condizioni di spedizione
ambient
Temperatura di conservazione
−20°C
Stringa SMILE
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
HPEUJPJOZXNMSJ-UHFFFAOYSA-N
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Descrizione generale
Applicazioni
- in gas chromatography (GC) to evaluate the absolute amount of methyl stearate among the fatty acid methyl esters of biodiesel[4][5][6]
- to evaluate the intramuscular fatty acid profile of fresh lamb meat in GC[7]
- to qualitatively analyse the transesterification reaction products by thin layer chromatography[5]
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
230.0 °F - closed cup
Punto d’infiammabilità (°C)
110.0 °C - closed cup
Dispositivi di protezione individuale
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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