释义 |
ben·zi·dine \ˈbenzəˌdēn, -_də̇n\ noun (-s) Etymology: probably from German benzidin, blend of benzin benzine and -id -ide : a white or reddish gray crystalline base NH2C6H4C6H4NH2 made usually by a series of reactions from nitrobenzene and used chiefly in making dyes (as Congo red), in chemical analysis, and in the detection of blood; 4,4′-biphenyl-diamine |