- Pyridine by Webster's
... n.) A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine.
- Dispoline by Webster's
... n.) One of several isomeric organic bases of the quinoline series of alkaloids.
- Rosaniline by Webster's
... n.) A complex nitrogenous base, C20H21N3O, obtained by oxidizing a mixture of aniline and toluidine, as a colorless crystalline substance which forms red salts. These salts are essential components of many of the socalled aniline dyes, as fuchsine, aniline red, etc. By extension, any one of the series of substances derived from or related to, rosaniline ...
- Isoquinoline by Great Soviet Encyclopedia
colorless crystals with a faint odor of almonds. Melting point, 24.5°C, and boiling point, 243°C. Its structural formula isSlightly soluble in cold water, isoquinoline dissolves readily in organic solvents. It is present in low concentration in coal tar, from which it is separated with quinoline. Isoquinoline is a stronger base than quinoline. The most important method of preparing isoquinoline ...
- Pinacolin by Webster's
... n.) A colorless oily liquid related to the ketones, and obtained by the decomposition of pinacone; hence, by extension, any one of the series of which pinacolin proper is the type.