3d image of benzidine skeletal formula

benzidine organic compound aromatic amine test cyanide dye bladder pancreatic cancer nitrobenzene diphenylhydrazine rearrangement congo red carcinogenic rendering carcinogenicity component hazard science ld50 promotion acute reagent tumor irritant danger lc50 malignancy antidote angiogenesis toxicology carcinogen agent azo nitrogen ring scientific toxic intoxication venom chemical material toxicity diazo building