Tropaeolin OOO

Acid orange 7, also known as 2-naphthol orange and Orange II, is an azo dye. It is used for dyeing wool. It is produced by azo coupling of β-naphthol and diazonium derivative of sulfanilic acid. Acid orange 7, also known as 2-naphthol orange and Orange II, is an azo dye. It is used for dyeing wool. It is produced by azo coupling of β-naphthol and diazonium derivative of sulfanilic acid.