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O5632

Sigma-Aldrich

Linoleic acid, conjugated methyl ester

Synonym(s):

CLA methyl ester, Octadecadienoic acid, conjugated, methyl ester

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About This Item

UNSPSC Code:
12352211
NACRES:
NA.25

biological source

plant (safflower)

Quality Level

assay

≥99% (GC)

form

liquid

technique(s)

GC/MS: suitable
HPLC: suitable

impurities

≤1% Linoleic acid methyl ester

functional group

carboxylic acid
ester

lipid type

omega FAs

shipped in

ambient

storage temp.

−20°C

General description

Conjugated linoleic acid (CLA) describes the positional and geometric isomers of C18:2 fatty acids (FA) with a conjugated double bond. cis-9, trans-11 CLA are considered as the major isomers of CLA, based on in vitro experiments and animal studies in milk. The major source of CLA in human diet is the ruminant fat.

Application

Linoleic acid, conjugated methyl ester (CLA) has been used as a standard for the determination of isomers of CLA in milk samples by high performance liquid chromatography (HPLC), gas chromatography-mass spectrometry. It has also been used in the production of sn-1,3 diacyl glycerol.

Biochem/physiol Actions

Conjugated linoleic acid (CLA) isomers as supplements inhibit the growth of numerous human cancer cell lines. It also possesses immunostimulant properties, prevents diabetes and reduces atherosclerosis.

Other Notes

A mixture of cis- and trans-9,11- and -10,12-octadecadienoic acid methyl esters. Isomer ratio may vary from lot to lot.

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ali Karabacak et al.
TheScientificWorldJournal, 2014, 821904-821904 (2014-02-14)
This study was conducted to compare fatty acid composition and content of conjugated linoleic acid (CLA) in different regions of sheep carcasses. Lambs of the Dağlıç breed were used for this purpose. Subsequent to a 68-day period of intensive fattening
Examination of the persistency of milk fatty acid composition responses to plant oils in cows given different basal diets, with particular emphasis on trans-C 18: 1 fatty acids and isomers of conjugated linoleic acid
Roy A, et al.
Animal Science Journal = Nihon Chikusan Gakkaiho, 82(4), 479-492 (2006)
M Coppa et al.
Journal of dairy science, 102(11), 10483-10499 (2019-09-10)
The aims of this work were to determine the effect of upland origin on milk composition when comparing similar lowland and upland production system and to highlight the factors responsible for the added value of upland milk from commercial farms.
Examination of the persistency of milk fatty acid composition responses to fish oil and sunflower oil in the diet of dairy cows
Shingfield KJ, et al.
Journal of Dairy Science, 89(2), 714-732 (2006)
Effect of incremental levels of sunflower-seed oil in the diet on ruminal lipid metabolism in lactating cows
Shingfield KJ, et al.
The British Journal of Nutrition, 99(5), 971-983 (2008)

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