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indigogen
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indigogen
indigogen Chem. (ˈɪndɪgəʊdʒɛn) [f. indigo + -gen, taken as ‘producing’.] An obsolete name for indigo-white.1838 T. Thomson Chem. Org. Bodies 375 Indigogen dissolves in alkalies. 1841 Brande Chem. 1122 The probable composition of white deoxidized indigo, or indigogene. 1878 Kingzett Anim. Chem. 233 I...
Oxford English Dictionary
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Giovanni Antonio Giobert
Giobert identified a colorless form of indigo (sometimes called indigogen or 'white' indigo) in plants, convertible to indigo-blue through oxidation.
wikipedia.org
en.wikipedia.org
indigo-white
indigo-white Chem. Reduced or deoxidized indigo, C16H12N2O2, also called leucindigo, a white crystalline powder produced by subjecting commercial indigo to the action of a reducing agent, as an alkaline fluid; it is re-converted by oxidation to indigo-blue. Formerly supposed to exist ready-formed in...
Oxford English Dictionary
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