单词 | indigoid |
释义 | indigoidadj.n. Of a dye: similar to indigotin in chemical structure, spec. in having another atom or atoms, esp. of sulphur, in place of one or both of the imino-groups. Hence as n., an indigoid dye. ΘΚΠ the world > matter > colour > colouring > colouring matter > [adjective] > yielding dye > types of dye substantive1794 alizarin1857 Congo red1885 neutral1892 Janus1898 metachrome1901 direct1902 indigoid1908 reactive1941 thioindigoid1943 the world > matter > colour > colouring > colouring matter > [noun] > dye > types of dyes pallOE sanders1329 raddlea1350 nutgallc1450 bark1565 logwood1581 sanders-wood1615 catechu1682 cate1698 cachou1708 valonia1722 India wood1742 cutch1759 alizari1769 standard1808 iron buff1836 colorine1838 acid dye1840 garancin1843 French tub1846 suranji1848 morindin1849 water blue1851 union dye1852 indigo-carmine1855 hernant1858 pigment colour1862 rosaniline1862 rose aniline1862 bezetta1863 bottom1863 acid colour1873 paraphenylenediamine1873 indigo-extract1874 tin-pulp1874 phthalein1875 sightening1875 chrome1876 rose bengal1878 azo-colours1879 azine1887 basic dye1892 chromotrope1893 garance1896 ice colour1896 xylochrome1898 cross-dye1901 indanthrene1901 Lithol1903 vat dye1903 thioindigo1906 para red1907 vat colour1912 vat dyestuff1914 indanthrone1920 ionamine1922 Soledon1924 Solochrome1924 Solacet1938 indigoid1939 thioindigoid1943 fluorol1956 Procion1956 1908 Jrnl. Chem. Soc. 94 i. 371 (heading) Indigoid dyes. 1908 Jrnl. Chem. Soc. 94 i. 371 The author applies the term ‘indigoid’ to dyes which are related to indigotin in that the imino-groups of the latter are substituted by a sulphur or other bivalent atom or group. 1939 J. B. Conant Chem. Org. Compounds (rev. ed.) xxx. 560 Indigo, its halogenated derivatives, and certain related compounds of analogous structure are sometimes referred to as the indigoids. 1946 Biochem. Jrnl. 40 669/1 This communication describes the isolation and identification of the indigoid pigments indirubin and indigotin from the acid-treated urine of a case of sprue. 1952 K. Venkataraman Chem. Synthetic Dyes II. xxxiii. 1004 Apart from indigo itself, the thio~indigoids constitute a much more important series than the indigoids. 1963 A. J. Hall Student's Handbk. Textile Sci. iv. 178 All these new synthetic dyes related in chemical composition to indigo are classed as indigoid dyes. 1966 Kirk-Othmer Encycl. Chem. Technol. (ed. 2) XI. 562 The nomenclature of the indigoids is based on the indole.., or thionaphthene, part of the molecule. This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018). < adj.n.1908 |
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