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Keywords: Para Red OR Pigment Red 1 OR 1-[(4-Nitrophenyl)azo]-2-naphthol OR 1-[(p-Nitrophenyl)azo]-2-naphthol OR 2-Naphthalenol, 1-[(4-nitrophenyl)azo]- OR 1-[(E)-(4-Nitrophényl)diazènyl]-2-naphtol OR 1-[(E)-(4-Nitrophenyl)diazenyl]-2-naphthol
