136-40-3,Phenazopyridinehydrochloride,2,6-diamino-3-(phenylazo)-pyridinmonohydrochloride;3-(phenylazo)-2,6-pyridinediamine,hydrochloride;6-pyridinediamine,3-(phenylazo)-monohydrochloride;azodyne;beta-phenylazo-alpha,alpha¡¯-diaminopyridinehydrochloride;diridone;dolonil;eucistin