ceruleinn.
/sɪˈruːliːɪn/ΘΚΠ
the world > life > biology > substance > pigment > [noun] > unspecified pigments > blue
cerulein1806
indigo-blue1838
indigotin1838
the world > matter > colour > named colours > blue or blueness > blue substances > [noun] > obtained from indigo
cerulein1806
1806 W. Henry Epitome Chem. (ed. 4) Add. 673 Cerulin appeared to consist of 1 atom of indigo + 4 atoms of water.
1838 T. Thomson Chem. Org. Bodies 200 He gave the name of cerulin, from its blue colour, to the soluble indigo contained in it, and that of ceruleo-sulphates to the salts.
b. A deep blue substance contained in many essential oils, also called azulene.
ΘΚΠ
the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > polynuclear aromatic hydrocarbons
green oil1607
paranaphthalene1838
anthracene1840
oxanthracene1862
chrysene1864
cerulein1866
acenaphthene1868
naphthoquinone1870
anthracene oil1873
azulene1874
acenaphthylene1875
ionene1894
the world > matter > colour > named colours > blue or blueness > blue substances > [noun] > others
pittacal1835
phyllocyanin1861
cerulein1866
1866 H. Watts Dict. Chem. IV. 185 An oily compound of a very deep blue colour, called cœrulein.
1880 New Sydenham Soc. Lexicon Cærulein, same as Azulene.
This entry has not yet been fully updated (first published 1889; most recently modified version published online December 2020).
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n.1806