4,4-Dimethyl-1-phenyl-3-pyrazolidon 4-Butyl-1,2-diphenyl-3,5-pyrazoli-dindion 4-Butyl-1-(4-hydroxyphenyl)-2-phenyl-3,5-pyrazolidindion 4-Methyl-1-phenyl-3-pyrazolidon 1-Phenyl-3-pyrazolidon Riboflavin-5'-(natriumhydrogenphosphat) Riboflavin 4-(Hydroxymethyl)-4-methyl-1-phenylpyrazolidin-3-on 7,8,10-trimethylbenzo[g]pteridin-2,4(3H,10H)-dion 1,2-Diphenyl-4-(2-(phenylsulfi-nyl)ethyl)-3,5-pyrazolidindion Flavin-adenin-dinucleotid Riboflavin, 2',3',4',5'-Tetrabutanoat Mofebutazon N2-(2,4-Dinitrophenyl)-L-asparagin N,N'-Diphenylmalonamid 3-(4-Nitroanilino)-1-(2,4,6-trichlorphenyl)-5-pyrazolon