1,3-Benzenediol, 2,6-bis((2-methylphenyl)azo)- 2,4-Di-o-tolylazo-1,3-dihydroxybenzene 2,6-Bis(o-tolylazo)resorcinol 2-(o-Tolylazo)-4-(o-tolylazo)resorcinol 68227-37-2 EINECS 269-349-6