单词 | ricinic |
释义 | ricinicadj. Chemistry. Now rare. ricinic acid n. any of certain crystalline carboxylic acids derived from castor oil, esp. (a) 12-ketostearic acid, C18H34O3 (b) ricinoleic acid. ΘΚΠ the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] > from seeds ricinic acid1827 ricinoleic acid1847 tiglic acid1875 1827 Philos. Mag. 2nd Ser. 1 313 MM. Bussy and Lecanu have obtained three new fatty acids from castor oil: one, which they call ricinic acid, is fusible at 72° Fahr. 1873 I. Remsen tr. R. Fittig Wöhler's Outl. Org. Chem. 128 Linoleic acid,..in linseed oil, and ricinic acid, C18H34O3, in castor oil, are similar to, but not homologous with, oleic acid. 1948 A. W. Ralston Fatty Acids iii. 212 Perrotte has obtained 12-ketostearic acid (ricinic acid), CH3(CH2)5CO(CH2)10CO2H, by the saponification of the corresponding nitrile. 2008 R. Conway What to eat when you're Pregnant i. 16 Castor oil contains ricinoleic acid, or ricinic acid, which irritates the small intestine and has a strong laxative effect. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < adj.1827 |
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