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S5376

Methyl stearate

~99% (GC)

Sinonimo/i:

Methyl octadecanoate, Stearic acid methyl ester

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1 g
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55,70 €
5 g
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154,00 €
10 g
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266,00 €
50 g
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615,00 €

Informazioni su questo articolo

Formula condensata:
CH3(CH2)16CO2CH3
Numero CAS:
Peso molecolare:
298.50
UNSPSC Code:
12352211
NACRES:
NA.25
PubChem Substance ID:
EC Number:
203-990-4
Beilstein/REAXYS Number:
1786213
MDL number:

55,70 €


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assay

~99% (GC)

Quality Segment

form

powder

bp

181-182 °C/4 mmHg (lit.)

mp

37-41 °C (lit.)

functional group

ester

lipid type

saturated FAs

shipped in

ambient

storage temp.

−20°C

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

Methyl stearate or methyl octadecanoic acid is a saturated methyl ester and a representative key molecule of biodiesel fatty acid methyl esters (FAMEs) produced from vegetable oils. Methyl stearate occurs naturally in clove oil.

Application

Methyl stearate has been used as a reference standard
  • in gas chromatography (GC) to evaluate the absolute amount of methyl stearate among the fatty acid methyl esters of biodiesel
  • to evaluate the intramuscular fatty acid profile of fresh lamb meat in GC
  • to qualitatively analyse the transesterification reaction products by thin layer chromatography

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Questo articolo
W504807M17702001437508
Methyl stearate ~99% (GC)

Sigma-Aldrich

S5376

Methyl stearate

Methyl stearate European Pharmacopoeia (EP) Reference Standard

M1770200

Methyl stearate

Methyl stearate United States Pharmacopeia (USP) Reference Standard

USP

1437508

Methyl stearate

assay

~99% (GC)

assay

≥96%

assay

-

assay

-

functional group

ester

functional group

-

functional group

-

functional group

-

shipped in

ambient

shipped in

-

shipped in

-

shipped in

-

form

powder

form

-

form

-

form

-

storage temp.

−20°C

storage temp.

-

storage temp.

-

storage temp.

2-8°C

bp

181-182 °C/4 mmHg (lit.)

bp

181-182 °C/4 mmHg (lit.)

bp

181-182 °C/4 mmHg (lit.)

bp

181-182 °C/4 mmHg (lit.)


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Classe di stoccaggio

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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Certificati d'analisi (COA)

Lot/Batch Number

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Domande

1–2 di 2 domande  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta
    1. 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

      Utile?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta
    1. 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

      Utile?

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