Sodium 4-(3-methyl-5-oxo-4-(phenyldiazenyl)-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonate
(E)-2-(Phenyldiazenyl)terephthalic acid
4-Methyl-6-(phenyldiazenyl)benzene-1,3-diamine
4-(Phenyldiazenyl)phenol
