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13058-52-1

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13058-52-1 Usage

Description

9(Z),11(E)-Conjugated linoleic acid methyl ester has been found in lemon grass (C. flexuosus). It has been used as a standard for the quantification of conjugated linoleic acids in thermally stressed olive oil and of trans fats in bakery products. [Matreya, LLC. Catalog No. 1255]

Uses

(9Z,11E) Methyl Ester 9,11-Octadecadienoic Acid is a fatty acid methyl ester that can be found in olive leaves and in suet oil.

Check Digit Verification of cas no

The CAS Registry Mumber 13058-52-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,5 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 13058-52:
(7*1)+(6*3)+(5*0)+(4*5)+(3*8)+(2*5)+(1*2)=81
81 % 10 = 1
So 13058-52-1 is a valid CAS Registry Number.
InChI:InChI=1/C19H34O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19(20)21-2/h8-11H,3-7,12-18H2,1-2H3/b9-8+,11-10-

13058-52-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name METHYL ESTER OF CLA (9-CIS, 11-TRANS)

1.2 Other means of identification

Product number -
Other names 9Z,11E-conjugated linoleic acid methyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:13058-52-1 SDS

13058-52-1Relevant articles and documents

Absorption Kinetics of the Main Conjugated Linoleic Acid Isomers in Commercial-Rich Oil after Oral Administration in Rats

Rodríguez-Alcalá, Luís M.,Ares, Irma,Fontecha, Javier,Martínez-Larra?aga, María-Rosa,Anadón, Arturo,Martínez, María-Aránzazu

, p. 7680 - 7686 (2017/09/12)

This study aimed to assess the oral absorption and plasma kinetics of two main isomers contained in commercial conjugated linoleic acid (CLA)-rich oil (Tonalin TG-80), rumenic acid (RA), and C18:2 trans-10, cis-12. The isomer plasma disposition after the single oral dose of 3000 mg of Tonalin TG-80/kg, containing 1200 mg/kg of each isomer, was studied in rats. The isomer plasma concentrations were determined by gas chromatography with flame ionization detection. The plasma kinetics showed rapid oral absorption of RA and C18:2 trans-10, cis-12 (t1/2a 0.34 ± 0.09 and 0.53 ± 0.01 h) and slow elimination (t1/2β 25.68 ± 3.29 and 18.12 ± 1.71 h); the maximal isomer plasma concentrations (Cmax) of 8.48 ± 0.98 and 7.67 ± 0.80 μg mL-1, respectively, were estimated at 2.08 ± 0.14 and 2.26 ± 0.11 h. Our results from a preclinical kinetic study in rats help to design future studies in humans for evaluating the CLA isomer dose-response.

Dissociation of proton-bound complexes reveals geometry and arrangement of double bonds in unsaturated lipids

Pham, Huong T.,Prendergast, Matthew B.,Dunstan, Christopher W.,Trevitt, Adam J.,Mitchell, Todd W.,Julian, Ryan R.,Blanksby, Stephen J.

, p. 170 - 177 (2015/10/20)

Double bond position and stereochemistry in unsaturated lipids can have profound impact on biological properties and activities but the assignment of these features by mass spectrometry is frequently challenging. Conventional techniques for lipid identification rely on collision-induced dissociation (CID) and are most often unable to differentiate between lipid isomers, particularly those involving double bond position and geometry (i.e., cis and trans). In this study, CID performed on proton-bound complexes of fatty acid methyl esters and iodoaniline (and related reagents) reveals unusual fragmentation patterns. CID products are shown to result from proton transfer and are associated with specific structures of the unsaturated lipids. Notably, CID of these complexes can not only distinguish cis- and trans-fatty acid methyl esters, but also differentiate conjugated double bond arrangements from non-conjugated analogs. Herein, the mechanisms underpinning this unique CID behavior are investigated by stable isotope labeling and are proposed to involve both carbene and free radical intermediates.

Design of ru-zeolites for hydrogen-free production of conjugated linoleic acids

Philippaerts, An,Goossens, Steven,Vermandel, Walter,Tromp, Moniek,Turner, Stuart,Geboers, Jan,Van Tendeloo, Gustaaf,Jacobs, Pierre A.,Sels, Bert F.

experimental part, p. 757 - 767 (2012/05/19)

While conjugated vegetable oils are currently used as additives in the drying agents of oils and paints, they are also attractive molecules for making bio-plastics. Moreover, conjugated oils will soon be accepted as nutritional additives for "functional food" products. While current manufacture of conjugated vegetable oils or conjugated linoleic acids (CLAs) uses a homogeneous base as isomerisation catalyst, a heterogeneous alternative is not available today. This contribution presents the direct production of CLAs over Ru supported on different zeolites, varying in topology (ZSM-5, BETA, Y), Si/Al ratio and countercation (H+, Na+, Cs+). Ru/Cs-USY, with a Si/Al ratio of 40, was identified as the most active and selective catalyst for isomerisation of methyl linoleate (cis-9,cis-12 (C18:2)) to CLA at 165 °C. Interestingly, no hydrogen pre-treatment of the catalyst or addition of hydrogen donors is required to achieve industrially relevant isomerisation productivities, namely, 0.7 g of CLA per litre of solvent per minute. Moreover, the biologically most active CLA isomers, namely, cis-9,trans-11, trans-10,cis-12 and trans-9,trans-11, were the main products, especially at low catalyst concentrations. Ex situ physicochemical characterisation with CO chemisorption, extended X-ray absorption fine structure measurements, transmission electron microscopy analysis, and temperature-programmed oxidation reveals the presence of highly dispersed RuO2 species in Ru/Cs-USY(40). Copyright

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