(2-((4-((2-Chloro-4-nitrophenyl)azo)phenyl)ethylamino)ethyl)(2-hydroxypropyl)dimethylammonium methyl sulphate 1-Propanaminium, N-(2-((4-((2-chloro-4-nitrophenyl)azo)phenyl)ethylamino)ethyl)-2-hydroxy-N,N-dimethyl-, methyl sulfate (salt) 85187-97-9 EINECS 286-187-1