cyanidin Chem.
(saɪˈænɪdɪn)
[a. G. cyanidin (Willstätter and Everest 1913, in Ann. d. Chemie CDI. 204), f. cyan- + -idin.]
An anthocyanidin (usu. isolated as the chloride, C15H11O6Cl) which in combination with various sugars constitutes many of the most important natural anthocyanin plant pigments.
| 1914 Chem. Abstr. VIII. 336 A violet sol[utio]n..is hydrolyzed..giving 2 mol[ecule]s glucose and cyanidin chloride, C16H13O7Cl. Ibid. 3422 If quercetin be reduced at 35° instead of at 0°, a small quant[ity] (0·5–4·0%) of cyanidin is formed. 1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 512/1 Cyanidin is the most common and widely distributed of the anthocyan pigments of plants, and occurs naturally in the form of various glycosides. 1966 J. B. Harborne in T. Swain Compar. Phytochem. xvi. 283 The fifth [Plumbago species], Plumbago rosea, is very distinct, having glycosides of kaempferol, quercetin, pelargonidin, cyanidin and delphinidin in its petals. |