indirubinn.
/ɪndɪˈruːbɪn/ Chemistry.
A substance, isomeric with indigo-blue, obtained by decomposition of indican, crystallizing in long purple metallic-shining needles. Also called indigo-purpurin and indigo-red.
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the world > matter > chemistry > organic chemistry > organic dyes > [noun] > indican derivatives
indigogen1838
indigo-red1838
indifuscin1859
indirubin1859
indicanine1865
indifulvin1865
indiglucin1865
indihumin1865
indiretin1865
indigo-white1874
1859 T. A. Carter in Edinb. Med. Jrnl. (1860) 5 i. 121 On treating indican with the mineral acid, he [Schunck] found that it was resolved into blue indigo, ‘indirubine’, ‘indifuscine’, and a peculiar kind of sugar.
1865–72 H. Watts Dict. Chem. III. 249 On..exposing the filtrate to the air, a purple-red deposit is formed, consisting of indirubin.
1881 Nature 7 July 230/1 The red isomeride of indigo-blue, Indirubin..possesses a splendid red colour, but has little or no tinctorial power.
1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 759/2 When fresh indican solution is mixed with strong acid and boiled, only indigo and indiglucin are obtained, but if the indican solution is previously boiled for a short time indirubin is also formed.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018).
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