Synonyms: 2,7-Naphthalenedisulfonic acid, compd. with 4-(diethylamino)-alpha-(4-(diethylamino)phenyl)benzenemethanol (1:1);2,7-Naphthalenedisulfonic acid, 4,4'-bis(diethylamino)benzhydrol;4-(Diethylamino)-alpha-(4-(diethylamino)phenyl)benzenemethanol, 2,7-naphthalenedisulfonic acid salt;Naphthalene-2,7-disulphonic acid, compound with 4-(diethylamino)-alpha-(4-(diethylamino)phenyl)benzenemethanol (1:1);naphthalene-1,7-disulfonic acid - bis[4-(diethylamino)phenyl]methanol (1:1)