cerulein, cerulin
(sɪˈruːliːɪn, ˈsɪərəlɪn)
Also cæ-.
[f. L. cærule-us blue + -in.]
† a. An intensely blue substance obtained from indigo. b. A deep blue substance contained in many essential oils, also called azulene.
| 1810 Henry Elem. Chem. (1840) II. 281 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. 1872 Watts Dict. Chem. IV. 185 An oily compound of a very deep blue colour called cærulein. 1880 Syd. Soc. Lex., Cærulein, same as Azulene. |