Cis-13-Docosenoic acid

CgHj CH CH(CH2)7C00H ibid CgH. CH CH(CH2)70H ibid CgHi CH CH(CH2)iiCOOH ibid trans-9 octadecenoic acid cis-9 octadecenoic acid trans-8 octadecenyl alcohol cis-8 octadecenyl alcohol trans-13 docosenoic acid CIS-13 docosenoic acid elaidic acid oleic acid elaidyl alcohol oleyl alcohol brassidic acid erucic acid... 

Erucic acid (cis-13-docosenoic acid) [112-86-7] M 338.6, -4.9. Crystallise erucic acid from MeOH. [Beilstein 2 IV 1676.]... 

AI3-18180 13-Docosenoic acid, (Z)- 13-Docosenoic acid, (13Z)- 13-cis-Docosenoic acid cis-13-Docosenoic acid (Z)-Docos-13-enoic acid EINECS 204-011-3 Erucic acid HSDB 5015 Hystrene 2290 NSC 6814. Major fatty acid in mustard, rapeseed and wallflower seed. Used as a chemical intermediate. Needles mp 33.5 bp = 381, bpi5 = 265 d b 0.860 insoluble in H2O, soluble in EtOH, CCI4, very soluble in Et20, MeOH. 

Docos-13-enoic acid 13-Docosenoic acid, (Z)- cis-13-Docosenoic acid 5 13 14-Docosenoic acid 5 (13)-cis-Docosenoic acid (Z)-13-Docosenoic acid. See Erucic acid Docosyl docosanoate. See Behenyl behenate Docusate sodium. See Dioctyl sodium sulfosuccinate Dodecafluoropentane. See Perfluoropentane Dodecahydrobisphenol A. See Bisphenol A, hydrogenated Dodecahydro-1,4a-dimethyl-7-(1-methylethyl)-1-phenanthrenemethanol. 

Erucic acid i- rii-sik- [NL Eruca, genus of herbs, fir. L, colewort] (1869) n. CH3 (CH2)7CH=CH(CH2)iiCOOH. Unsaturated fatty acid found in many vegetable oils. Properties mp, 33°C bp, 281°C/30 mmHg Sp gr, 0.860/55°C and iodine value, 75.2. Also known as cis-13-docosenoic acid. 

As mentioned earlier, many seed oils produce a fatty acid that is different from the usual leaf fatty acids and which is characteristic of the plant family (Table II) (Smith, 1970 Hitchcock and Nichols, 1971). In general this makes a useful marker for seed oil development (Fig. 7). Caution is needed, since the characteristic fatty acid is not always exclusive to the oil. Appelqvist (1975) has demonstrated the presence of the monoenoic acid in the hypocotyls and testa ofB. napus, as well as in the cotyledons. It should be noted, however, that the structure of the major C22 monoenoic acid in the testa is not that of erucic acid (cis-13-docosenoic acid) but of an isomer, cis-15-docosenoic acid (Table VIII). Thus, if whole seeds are used in tracer studies of erucic acid biosynthesis or compartmentation, care must be taken in the interpretation of results if anjdysis is made only of the whole C22 monoene fraction (Appelqvist, 1975). Again it is emphasized that, although the subcellular compartmentation of erucic acid may not be exclusive to the major sites of oil storage, the compartmentation within lipid classes is absolutely exclusive to the triacyigiycerols as opposed to the polar lipids (Table III). 

The fatty amides used in PE production include erucamide (EA) cis-13-docosenoic acid, amide), behenamide (docosenoic acid, amide), oleamide (OA) and stearamide (SA) [43]. Unsaturated amides, such as EA and OA, provide superior slip properties, whereas saturated amides, such as behenamide and SA, provide acceptable slip and superior antiblocking properties. EA displaced OA as the preferred slip agent for the production of PO film because it melts at a higher temperature and is more stable at extrusion temperatures EA can be used as a slip and antiblock agent [45]. SA also provides useful slip properties, although it is slower acting it has superior antiblock properties to those of EA and OA. 

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