butter yellow

(redirected from dimethylaminoazobenzene)

but·ter yel·low

(bŭt'er yel'ō), [C.I. 11160]
A fat-soluble yellow dye (MW 225) that has hepatic carcinogenic action in experimental animals; used as an indicator of pH (red, at pH 2.9, yellow at pH 4).

butter yellow

A fat-soluble yellow dye formerly used as a food additive, which proved to be a liver and bladder carcinogen in rodents and is no longer used in food.

Hepatomegaly, liver and kidney dysfunction, contact dermatitis, cough, wheezing, dyspnoea, bloody sputum, urinary frequency, haematuria, dysuria, possible occupational carcinogen.
References in periodicals archive ?
Activity of enzymes in the rat liver in cancerogenesis induced by dimethylaminoazobenzene, and following the administration of the food dye amarant.
Topfer's reagent (dimethylaminoazobenzene) and phenolphthalein are almost universally used.