1-Naphthalenol, 4-((4-ethoxyphenyl)azo)- 4-((4-Ethoxyphenyl)azo)-1-naphthalenol 4-((4-Ethoxyphenyl)azo)naphthol 6535-42-8 70699-55-7 C.I. Solvent Red 3 CI 12010 EINECS 229-439-8 Solvent red 3