Synonyms: R 522;2,6-Di-tert-butylnaphthalinedisulfonic acid 1-dimethylamino-3,3-diphenylhexanone-(4);103442-82-6;2,6-Naphthalenedisulfonic acid, 3,7-di-tert-butyl-, compd. with 6-(dimethylamino)-4,4-diphenyl-3-hexanone;AC1L1RVQ;AC1Q5GY3;LS-94655;3,8-ditert-butylnaphthalene-2,6-disulfonic acid; 6-(dimethylamino)-4,4-diphenylhexan-3-one;3,8-di-tert-butylnaphthalene-2,6-disulfonic acid - 6-(dimethylamino)-4,4-diphenylhexan-3-one (1:1);3,8-di-tert-butylnaphthalene-2,6-disulfonic acid- 6-(dimethylamino)-4,4-diphenylhexan-3-one(1:1)