61290-31-1 Benzenesulfonic acid, 3-((4-((4-(2-hydroxybutoxy)phenyl)azo)-5-methoxy-2-methylphenyl)azo)-, monolithium salt Benzenesulfonic acid, m-(p-(p-(2-hydroxybutoxy)phenylazo)-5-methoxy-2-methylphenylazo)-, lithium salt EINECS 262-688-0 Lithium 3-((4-((4-(2-hydroxybutoxy)phenyl)azo)-5-methoxy-2-methylphenyl)azo)benzenesulphonate