benzidine(redirected from 1,2-diphenylhydrazine)
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a compound formed by the action of acids on hydrazobenzene, once widely used in testing for occult blood; its use is now limited because it is toxic and carcinogenic.
A p-diaminophenyl, previously used to detect stool blood and agueous sulfates and as a reagent in special stains; now identified as a carcinogen.
benzidine/ben·zi·dine/ (ben´zĭ-dēn) a carcinogen and toxin once widely used as a test for occult blood.
benzidineA yellowish or reddish crystalline powder used in a test to detect small quantities of blood.
a compound used as a test for traces of blood (benzidine test).