2-Thenoyltrifluoroacetone；TTA；(CAS:326-91-0); 1-Nitroso-2-naphthol(CAS:131-91-9); 4,4-Trifluoro-1-(2-furyl)-1,3-butanedione(CAS:326-90-9); 4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione；(CAS No.: 893－33－4) 4,4,4-Trifluoro-1-phenyl-1,3-butanedione；BTA；(CAS No.: 326－06－7);3',3'-Dimethyl-1'-(-hydroxyethyl)-6-nitrospiro[2H-1-benzopyran-2,2'-indoline]；(CAS:16111-07-2); 1,3,3-Trimethylspiro[indoline-2,3'-[3H]naphth[2,1-b][1,4]oxazine]； (CAS:27333-47-7);