1',2'-Dihydro-6'-hydroxy-4'-methyl-2'-oxo-5'-(phenylazo)-1,3'-bipyridinium acetate 1,3'-Bipyridinium, 1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-5'-(phenylazo)-, acetate 1,3'-Bipyridinium, 1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-5'-(phenylazo)-, acetate (salt) 1-(1,2-Dihydro-6-hydroxy-4-methyl-2-oxo-5-(phenylazo)-3-pyridinyl)pyridinium acetate 68922-24-7 EINECS 272-992-5