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Key Documents

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

Related Categories

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 Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), 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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A D Martin et al.
Journal of dairy science, 98(8), 5374-5384 (2015-05-26)
To investigate the feasibility of milk fatty acids as predictors of onset of luteal activity (OLA), 87 lactations taken from 73 healthy Norwegian Red cattle were surveyed over 2 winter housing seasons. The feasibility of using frozen milk samples for
P G Toral et al.
Journal of dairy science, 101(7), 6109-6121 (2018-05-01)
A great deal of uncertainty still exists about intermediate metabolites and pathways explaining the biohydrogenation (BH) of 20- and 22-carbon polyunsaturated fatty acids (PUFA). Therefore, this study was conducted to provide further insight into the ruminal metabolism of 20:5 n-3
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.
C Villot et al.
Animal : an international journal of animal bioscience, 14(2), 388-398 (2019-07-18)
High-starch diets (HSDs) fed to high-producing ruminants are often responsible for rumen dysfunction and could impair animal health and production. Feeding HSDs are often characterized by transient rumen pH depression, accurate monitoring of which requires costly or invasive methods. Numerous
Leriana Garcia Reis et al.
Nutrients, 13(6) (2021-07-03)
The study aimed to evaluate the supplementation of gilts with cow's milk naturally enriched with n-3 and n-6 polyunsaturated fatty acids (PUFA) on reproductive outcomes, and the serum biochemical and FA profile of swine females and their offspring. During 316

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