slovodefinícia
C5H5N
(gcide)		Pyridine \Pyr"i*dine\, n. [From Gr. ? fire.] (Physiol. Chem.)
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 ptoma["i]nes, may be mentioned.
See Lutidine.
[1913 Webster]
podobné slovodefinícia
C5H5N5O
(gcide)		Guanin \Gua"nin\, n. (Physiol. Chem.)
A crystalline substance (C5H5N5O) contained in guano. It is
also a constituent of the liver, pancreas, and other glands
in mammals.
[1913 Webster]

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