Source:http://linkedlifedata.com/resource/umls/id/C0058437
SPN: Dye and chemical solution stains for medical purposes are mixtures of synthetic or natural dyes or nondye chemicals in solutions used in staining cells and tissues for diagnostic histopathology, cytopathology, or hematology.,NCI: A Benzidine-based azo dye that is metabolized to free Benzidine in vivo. Direct black 38 is primarily used for the dyeing of textiles, leather and paper. Benzidine and its metabolic derivatives have been detected in the urine of workers exposed to Benzidine-based dyes. Exposure to this dye is strongly associated with the occurrence of bladder cancer. (NCI05)