1072-36-2

Basic information

• Product Name: (10E,12E)-octadeca-10,12-dienoic acid
• Synonyms: 10,12-octadecadienoic acid; 10,12-octadecadienoic acid, (10E,12E)-
• CAS NO: 1072-36-2
• Molecular Formula: C₁₈H₃₂O₂
• Molecular Weight: 280.4455
• Mol File: 1072-36-2.mol
• Article Data: 21

Chemical Properties

• Boiling Point: 377.7°C at 760 mmHg
• Flash Point: 274.6°C
• Density: 0.911g/cm³
• Vapor Pressure: 9.54E-07mmHg at 25°C
• Refractive Index: 1.478
• CAS DataBase Reference: (10E,12E)-octadeca-10,12-dienoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: (10E,12E)-octadeca-10,12-dienoic acid(1072-36-2)
• EPA Substance Registry System: (10E,12E)-octadeca-10,12-dienoic acid(1072-36-2)

Safety Data

• Hazardous Substances Data: 1072-36-2(Hazardous Substances Data)

Upstream product

• 60-33-3 linoleic acid 
• 2462-85-3 linoleic acid methyl ester 
• 56-23-5 tetrachloromethane 
• 111-46-6 diethylene glycol 
• 71-36-3 butan-1-ol 
• 112-63-0 Methyl linoleate 
• 141-22-0 Ricinoleic acid 
• 330214-87-4 t10,c12 conjugated linoleic acid ethyl ester 
• 119-61-9 benzophenone 
• 8001-23-8 safflower oil 
• 112-53-8 1-dodecyl alcohol 

Downstream Products

• 65410-38-0 12-oxo-(10E)-dodecan-10-oic acid 
• 5578-80-3 ω-oxydecanocarboxylic acid 
• 1002-79-5 (10E,12Z)-10,12-octadecadienoic acid methyl ester 
• 822-10-6 (9Z,11E)-methyl octadeca-9,11-dienoate 
• 1311271-89-2 (Z)-2-(4-methoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl (10E,12Z)-linoleate 
• 1311271-87-0 (Z)-2-(3-chlorobenzylidene)-3-oxo-2,3-dihydrobenzofuran-5-yl (10E,12Z)-linoleate 
• 1311271-85-8 (Z)-2-(4-fluorobenzylidene)-3-oxo-2,3-dihydrobenzofuran-5-yl (10E,12Z)-linoleate 
• 1311271-83-6 (Z)-2-(3-methoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-5-yl (10E,12Z)-linoleate 
• 1311271-91-6 3-(4-methoxybenzyl)-4-oxo-4H-chromen-7-yl (10E,12Z)-linoleate 
• 54232-59-6 9‐oxo‐10E,12Z‐octadecanoic acid 

Relevant articles and documents

Direct conversion of linoleic acid over silver catalysts in the presence of H2: An unusual way towards conjugated linoleic acids

(Chemical Equation Presented) A silver lining: The isomerization of conjugated double bonds over silver catalysts in the presence of hydrogen are unusual and hitherto unknown. Silver catalysts control the selectivity of the extremely difficult isomerization of linoleic acid towards the physiologically important 9-cis,11-trans- and 10-trans, 12-cis-unsaturated isomers, which are anticarcinogenic and antiarteriosclerotic agents (see scheme, CLA = conjugated linoleic acids).

Synergetic effect of ruthenium and basicity sites in the Ru-MgAl catalyst for hydrogen-free production of conjugated linoleic acids

A series of Ru-MgAl composite oxide catalysts prepared by calcining the ruthenium grafted hydrotalcite-like precursor at various temperatures were used in the hydrogen-free production of conjugated linoleic acid. The effect of calcination temperature on the textural, base and catalytic properties of the materials was investigated. Results indicated that the Ru-MgAl composite oxides calcined at 450 °C showed high activity, namely, CLA productivity, CLA production rate and TOF up to 1.52 g CLA g (CLA) L-1 (solvent) min-1, 284 g (CLA) g-1 (Ru) h-1 and 102.6 mol (LA converted) mol-1 (Ru) h-1. Moreover, the biologically active CLA isomers, cis-9, trans-11, trans-10, cis-12 and trans-9, trans-11-CLA, were the main products, while almost no hydrogenated products were formed. Meanwhile, the role of ruthenium and basicity sites in the catalytic reaction has been studied. It was found that the basicity sites of the Ru-MgAl catalyst and the ruthenium activity sites seem to have a synergic effect on the catalytic reaction. The possible reaction mechanism for the isomerization was also proposed. This journal is

A New Heterogeneously Catalytic Pathway for Isomerization of Linoleic Acid over Ru/C and Ni/H-MCM-41 Catalysts

The isomerization reaction of linoleic acid (cis-9,cis-12-octadecadienoic acid) to conjugated linoleic acids (CLA) was studied. A new heterogeneously catalytic pathway was developed for synthesis of CLA at mild reaction conditions (80-120 deg C) over Ru/C and Ni/H-MCM-41 catalysts in a diluted system. The isomerization reaction was tested in 1-octanol and n-decane. Solvents with low polarity were selected to afford good reactant adsorption on the catalyst surface and a high solvent-to-reactant ratio was used to prevent potential side reactions. Catalyst characterization was done by X-ray powder diffraction, X-ray fluorescence, X-ray photoelectron spectroscopy, hydrogen temperature-programmed desorption, direct current plasma atomic emission spectrometry, and BET techniques. The reactions taking place were isomerization of linoleic acid C18:2, hydrogenation of C18:2 acids to C18:1 monounsaturated octadecenoic acids (oleic acid, elaidic acid, cis-vaccenic acid and trans-vaccenic acid), and further hydrogenation of C18:1 acids to C18:0 stearic acid (n-octadecanoic acid) where isomerization and hydrogenation were two competing parallel reactions. The isomerization reaction was enhanced by preactivation of the catalysts under hydrogen, but such a treatment also increased the side reaction double-bond hydrogenation.

Method For The Production Of Conjugated Polyunsaturated Fatty Acids With Heterogenous Catalysts

The present invention relates to an improved process for the production of conjugated polyunsaturated fatty acids (PUFA), preferably conjugated linoleic acid (CLA), using finely dispersed heterogeneous metal catalysts on a mesoporous support, in the absence of Hg. The present invention also relates to a method to increase the large microporosity and (optionally) the small mesoporosity of a zeolite, thus obtaining a modified zeolite having a large and highly accessible internal surface.