C6H5N2H3

Phenyl Phe"nyl, n. [Gr. ? to bring to light + -yl: cf. F. ph['e]nyle. So called because it is a by-product of illuminating gas.] (Chem.) A hydrocarbon radical ({C6H5}) regarded as the essential residue of benzene, and the basis of an immense number of aromatic derivatives. [1913 Webster]

{Phenyl hydrate} (Chem.), phenol or carbolic acid.

{Phenyl hydrazine} (Chem.), a nitrogenous base ({C6H5.N2H3}) produced artificially as a colorless oil which unites with acids, ketones, etc., to form well-crystallized compounds. [1913 Webster]