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S5376

Sigma-Aldrich

Methyl stearate

~99% (GC)

Synonym(s):

Methyl octadecanoate, Stearic acid methyl ester

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€254.00
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€588.00

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1 G
€52.20
5 G
€139.00
10 G
€254.00
50 G
€588.00

About This Item

Linear Formula:
CH3(CH2)16CO2CH3
CAS Number:
112-61-8
Molecular Weight:
298.50
Beilstein:
1786213
EC Number:
203-990-4
MDL number:
MFCD00009005
UNSPSC Code:
12352211
PubChem Substance ID:
24899648
NACRES:
NA.25

€52.20

In StockDetails

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Assay

~99% (GC)

Quality Level

200

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

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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.[1][2] Methyl stearate occurs naturally in clove oil.[3]

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[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]

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

230.0 °F - closed cup

Flash Point(C)

110.0 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH2960
BCCM2267
BCCD6969
BCBZ9969
BCBV9185

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Volatile components of clove essential oil (Eugenia caryophyllus Spreng): neutral fraction
Muchalal M and Crouzet J
Agricultural and Biological Chemistry, 49(6), 1583-1589 (1985)
Effects of specific fatty acid methyl esters on diesel fuel lubricity
Geller DP and Goodrum JW
Fuel: The Science and Technology of Fuel and Energy, 83(17-18), 2351-2356 (2004)
The effect of genotype and environment on biodiesel quality prepared from Indian mustard (Brassica juncea) grown in Australia
Wilkes MA, et al.
Industrial Crops and Products, 48, 124-132 (2013)
Incorporation of thyme leaves in the diet of pregnant and lactating ewes: Effect on the fatty acid profile of lamb
Nieto G, et al.
Small Ruminant Research, 105(1-3), 140-147 (2012)
Characterization and catalytic performance of potassium loaded on rice husk silica and zeolite nay for transesterification of jatropha seed oil
Montalbo KD, et al.
Quimica nova, 36(8), 1116-1120 (2013)
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Questions

1–2 of 2 Questions  

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

    1 answer

    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

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

    1 answer

    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/449/386/product-dating-information-mk.pdf

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