Rote Monoazo-Farbstoffe und Verfahren zu ihrer Herstellung

摘要

(A) Compds. (I):- where R and R' = 1-6 C alkyl M = H, NH4 or a physiologically acceptable cation, e.g. Na, K, Ba, Ca or Fe (B) Edible, pharmaceutical or cosmetic compositions coloured with (I). (C) Wrapping papers or labels printed or coloured with (I). Red colouring matter of low toxicity.