1,4-NAPHTHOQUINONE, 2,2'-(SULFONYLBIS(p-PHENYLENEIMINO))BIS(3-CHLORO- 2,2'-(Sulfonylbis(p-phenyleneimino))bis(3-chloro-1,4-naphthoquinone) 4-14-00-00410 (Beilstein Handbook Reference) 6937-70-8 BRN 3116463 NSC 39355