cyanogen

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cy·an·o·gen

(sī-an'ō-jen),
1. A compound of two cyano radicals, NC-CN.
2. Highly toxic compounds (general formula X-CN, where X is a halogen) that are used in chemical syntheses and as tissue preservatives. An example is cyanogen bromide.

cy·an·o·gen

(sī-an'ō-jen)
1. Synonym(s): ethanedinitrile.
2. A term used to refer to the cyanide radical in compounds, such as cyanogen chloride (CNCl2) and cyanogen bromide (CNBr2), in which the cyanide moiety is bound to one or more halide atoms.

cyanogen

(sī-ăn′ō-jĕn) [″ + gennan, to produce]
1. The radical CN.
2. A poisonous gas, CN−CN.