-ein, -eine
variants of -in1 and -ine5 used as suffixes in the names of certain chemical compounds containing anhydrides, esp. phthalic anhydride. In bases the ending is usually -eine, and in non-bases -ein.
| 1871 Jrnl. Chem. Soc. XXIV. 834 (heading) Fluorescein and Fluorescin. Ibid., By heating together phthalic anhydride and resorcin, Baeyer has obtained a body which he calls fluorescein. 1884, etc. [see cysteine]. 1889 Jrnl. Chem. Soc. LVI. 1153 Catecholphthaleïn..is obtained when phthalic anhydride (3 parts) is heated with catechol and zinc chloride. 1932 Chem. Abstr. 1388 One of the alleged secondary alkaloids, nicoteine, isolated by Pictet, is shown to have no existence. 1949 Blakiston's New Gould Med. Dict., Narceine, an alkaloid contained in morphine. |