1-Hydroxy-4-(o-tolyldiazeno)-2-naphthoic acid 2-NAPHTHOIC ACID, 1-HYDROXY-4-(o-TOLYLAZO)- 2-Naphthalenecarboxylic acid, 1-hydroxy-4-((2-methylphenyl)azo)- 26233-08-9 BRN 0927424