Synonyms:
1,3'-bipyridinium, 5'-((2,5-dichlorophenyl)azo)-1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-, salt with hydroxybutanedioic acid (1:1) ; einecs 269-303-5 ; 1,3'-bipyridinium, 5'-(2-(2,5-dichlorophenyl)diazenyl)-1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-, 2-hydroxybutanedioate (1:1) ; 5'-[(2,5-dichlorophenyl)azo]-1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-1,3'-bipyridinium malate ; 5-((2,5-dichlorophenyl)azo)-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-1,3-bipyridinium malate