indigotinn.
/ˈɪndɪɡəʊtɪn/ Chemistry.
= indigo-blue n. 2.
ΘΚΠ
the world > matter > colour > named colours > blue or blueness > blue colouring matter > [noun]
indigo-blue1838
indigotin1838
anthocyanin1853
phycocyan1866
stentorin1873
oocyan1875
phycocyanin1875
phycocyanogen1881
the world > life > biology > substance > pigment > [noun] > unspecified pigments > blue
cerulein1806
indigo-blue1838
indigotin1838
1838 Penny Cycl. XII. 460/1 When common indigo has been treated with dilute acids, alkalis, and alcohol, the remainder is indigo-blue, or indigotin, or indigo nearly in a state of purity.
1874 C. Schorlemmer Man. Chem. Carbon Compounds 425 Indigotin or indigo-blue, C16H10N2O2.
Compounds
indigotin-disulphonic n. = indigo disulphonic.
ΚΠ
1874 C. Schorlemmer Man. Chem. Carbon Compounds 427 The filtrate from this acid contains indigotindisulphonic acid (indigo-sulphuric acid), C16H8N2O2(SO3H)2.—[See quot. for indigo-extract n. at indigo n. and adj. Compounds 2.]
Categories »
indigotin-disulphonate n. = sulphindigotate n. at sulphindigotic adj. Derivatives: see indigo-carmine n. at indigo n. and adj. Compounds 2.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2021).
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n.1838