1,3'-Bipyridinium, 5',5'''-(1,2-ethanediylbis(4,1-phenyleneazo))bis(1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-, salt with 2-hydroxypropanoic acid (1:2) 5',5'''-(Ethylenebis(p-phenyleneazo))bis(1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-1,3'-bipyridinium) dilactate 71032-99-0 EINECS 275-139-5