单词 | -ein |
释义 | -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.
1871Jrnl. 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]. 1889Jrnl. Chem. Soc. LVI. 1153 Catecholphthaleïn..is obtained when phthalic anhydride (3 parts) is heated with catechol and zinc chloride. 1932Chem. Abstr. 1388 One of the alleged secondary alkaloids, nicoteine, isolated by Pictet, is shown to have no existence. 1949Blakiston's New Gould Med. Dict., Narceine, an alkaloid contained in morphine. |

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