Benzenesulfonic acid, 4-[[4-[[2-(diethylamino)ethyl]amino]-7-methoxy-1-naphthalenyl]azo]- (9CI); Benzenesulfonicacid, p-[[4-[[2-(diethylamino)ethyl]amino]-7-methoxy-1-naphthyl]azo]- (7CI,8CI)
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