4,4'-Dimethyltriphenylamine

4,4,4-TRICHLOROBUTYRIC ACID

4,4,4-TRIFLUORO-1-(4-METHOXYPHENYL)-1,3-BUTANEDIONE

4,4,4-TRIFLUORO-3-(TRIFLUOROMETHYL)CROTONIC ACID

4,4,4-Trifluorobutyric acid

4,4'-BIPHENYLDISULFONIC ACID

DIETHYL BIPHENYL-4,4'-DICARBOXYLATE

4,4'-BIPHENYLDISULFONYL CHLORIDE

4,4'-Bipiperidine dihydrochloride

4,4'-Diamino-2,2'-stilbenedisulfonic acid