1.21.3.4 0.0065 - sulochrin - 437825 1.21.3.4 0.063 - O2 - 437825 1.21.3.4 0.4 - N,N-Dimethyl-p-phenylenediamine - 437825 1.21.3.4 1 - N,N,N',N'-tetramethyl-p-phenylenediamine - 437825 1.21.3.4 2 - p-phenylenediamine - 437825 1.21.3.4 5 - o-phenylenediamine - 437825 1.21.3.4 40 - catechol - 437825 1.21.3.4 60 - hydroquinone - 437825 1.21.3.4 150 - (+)-ascorbic acid - 437825