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    —— 4-ethoxy-8-(tri-<i>O</i>-benzoyl-β-<i>D</i>-ribofuranosyl)-8<i>H</i>-imidazo[1,2-<i>a</i>][1,3,5]triazin-2-one 67774-04-3 C33H28N4O9
    —— 4,9-dimethyl-1,6-diphenyl-5,7b,10,10c-tetraaza-cyclopenta[<i>hi</i>]aceanthrylene 66653-11-0 C28H20N4
    —— 4-((S)-2-{[6-(benzotriazol-1-yloxy)-2-phenyl-pyrimidine-4-carbonyl]-amino}-3-methyl-butyryl)-piperazine-1-carboxylic acid butyl ester 1251668-83-3 C31H36N8O5
    —— (4R,5S)-5-[(dimethylamino)(diphenyl)methyl]-α,α,2,2-tetraphenyl-1,3-dioxolane-4-methanol 1400792-63-3 C43H39NO3
    —— 4-(4-azidophenyl)-3-methyl-5-(1-methylethyl)furan-2(5H)-one 1242433-77-7 C14H15N3O2
    —— 4,7-dihydroxypentacyclo[8.4.2.111,14.01,10.03,8]heptadeca-3,5,7,12-tetraene-2,9-dione 94341-48-7 C17H14O4
    —— 4-butoxy-4-methyl-pent-1-yne 18215-51-5 C10H18O
    —— (4aS,8aS)-8a-(3,3-Dimethyl-but-1-ynyl)-octahydro-naphthalen-2-one 66529-98-4 C16H24O
    —— 4-diisopropylamino-5-oxo-6-phenyl-5<i>H</i>-[1,2,3]triazine-2-carboxylic acid methyl ester 70611-25-5 C17H22N4O3
    —— 4-Chloro-4-ethylhexane-2,3-dione 1173357-20-4 C8H13ClO2
    —— (4Z)-nona-4,8-dien-2,6-diyn-1-ol 1026755-35-0 C9H8O
    —— 4-Amino-3-(2-carboxybenzylidenamino)pyridin 71209-13-7 C13H11N3O2
    —— 4-Ethoxy-1-hydroxymethyl-cyclohexanecarboxylic acid [(S)-2-phenyl-1-(4-trifluoromethoxy-phenylcarbamoyl)-ethyl]-amide 223677-26-7 C26H31F3N2O5
    —— 4-(4-bromophenyl)-4-oxo-2-(3-trifluoromethylbenzyl)butyric acid 796034-22-5 C18H14BrF3O3
    —— 4,8-Tetracosadienal, 4,8-dimethyl-, (Z,Z)- 116206-68-9 C26H48O
    —— 4-(5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-heptadecafluorododecyloxy)benzoyl hydrazine 1228114-74-6 C19H15F17N2O2
    —— 4-benzoyl-1-benzyl-5-methyl-1H-pyrrole-2-carboxylic acid cyclohexylamide 1448859-90-2 C26H28N2O2
    —— 4-(2,2-difluorocyclopropyl)benzoic acid 1889432-53-4 C10H8F2O2
    —— 4-formyl-2,6-diphenylaniline 619297-99-3 C19H15NO
    —— 4-(8-aminoimidazo[1,2-a]pyridinyl)benzoic acid hydrobromide 171177-41-6 BrH*C14H11N3O2
    —— (4-Chloro-phenyl)-[2-(2,4-dichloro-phenyl)-oxiranyl]-methanone 111299-34-4 C15H9Cl3O2
    —— 4-Acetyl-3,5-diphenyl-4H-1,4-oxazin 83072-55-3 C18H15NO2
    —— (4-Chloro-phenylsulfanyl)-(3,4-dichloro-phenyl)-acetic acid 70856-37-0 C14H9Cl3O2S
    —— 4,7-Diiod-2-o-tolylphthalimid 67687-32-5 C15H9I2NO2
    —— 4-[4-(4-chloro-phenyl)-piperazin-1-yl]-1-pyridin-4-yl-butan-1-one 39512-45-3 C19H22ClN3O
    —— 4-(2-{[4-[(6-ethyl-1,3-benzothiazol-2-yl)amino]-6-(phenylmethyl)-2-pyrimidinyl]amino}ethyl)benzenesulfonamide 1246031-22-0 C28H28N6O2S2
    —— 4-benzyl-1-(thiophen-2-ylacetyl)semicarbazide 1253855-16-1 C14H15N3O2S
    —— 4-(6-butoxy-5-nitro-2-piperazin-1-yl-pyrimidin-4-yl)-thiomorpholine 1,1-dioxide 56034-82-3 C16H26N6O5S
    —— (4-triethylsilyloxybenzyloxy)triethylsilane 58612-75-2 C19H36O2Si2
    —— 4-amino-16H-dinaphtho[2,3-a;2',3'-i]carbazole-5,10,15,17-tetraone 859798-95-1 C28H14N2O4
    —— 4,5-bis{2-[13(2-pyridinylmethyl)-1,9-dithia-5,13-diazacyclohexadecanyl-5]ethyl}thiophthalonitrile 1443931-80-3 C48H70N8S6
    —— 4-phenyl-3-butyn-2-one tosylhydrazone 69180-02-5 C17H16N2O2S
    —— 4-chloro-5-[4-(2,3-dichloro-benzenesulfonyl)-[1,4]diazepan-1-yl]-benzofuran-2-carboxylic acid 1192172-41-0 C20H17Cl3N2O5S
    —— 4,4'-diethyl-2,6-dihexylcyclopenta[2,1-b:3,4-b']dithiophene 1544537-97-4 C25H38S2
    —— 4-(1,1-dioxo-1λ<sup>6</sup>-benz[<i>d</i>]isothiazol-3-yl)-<i>N</i>,<i>N</i>-dimethyl-aniline 72874-12-5 C15H14N2O2S
    —— 4-(4-chlorophenyl)-1-methoxycarbonylmethyl-pyrimidin-1-ium bromide 1173929-51-5 Br*C13H12ClN2O2
    —— 4-((1E,3E)-5-Bromo-3-methyl-penta-1,3-dienyl)-3,5,5-trimethyl-cyclohex-2-enone 83020-85-3 C15H21BrO
    —— (4Z)-7-Methyl-4-<(2E)-4-methyl-2-pentenyliden-1-yl>-isochroman-1-one 130767-23-6 C16H18O2
    —— 4-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-benzofuran-7-ol 1258960-11-0 C19H15ClN2O4
    —— 4-methyl-N-(1-methyl-cyclohexyl)-benzenesulfonamide 126002-43-5 C14H21NO2S
    —— 4-methyl-2-phenylazoaniline 313485-86-8 C13H13N3
    —— 4-(3,4-difluorobenzyl)-N-{(2E)-3-[2-({3-fluoro-4-[(1-methylpiperidin-4-yl)amino]-phenyl}amino)quinazolin-6-yl]prop-2-en-1-yl}-3-oxo-3,4-dihydropyrazine-2-carboxamide 1204399-62-1 C35H33F3N8O2
    —— 4-[4-(3,4-dihydroquinolin-1(2H)-yl)-4-oxobutoxy]-2,2-dimethylindan-1-one 878291-55-5 C24H27NO3
    —— 4-(((3-chloro-4-cyanobenzyl)oxy)(1-methyl-1H-imidazol-5-yl)methyl)-2-(1-naphthyl)benzonitrile hydrochloride 371761-85-2 C30H21ClN4O*ClH
    —— 4-Methyl-undecen-(2)-ol-(5)-carbonsaeure-(4)-ethylester 101083-32-3 C15H28O3
    —— 4-[(indol-3-yl)methylene]-3-propyl-2-pyrazolin-5-one 324550-62-1 C15H15N3O
    —— (4-ethylphenyl)-quinuclidin-3-yl-methanone 1428324-12-2 C16H21NO
    —— (4R)-4-(3-phenylpropyl)-4-(prop-2-en-1-yl)oxolan-2-one 1452900-04-7 C16H20O2
    —— 4-(hexyloxy)-N-(4-(hexyloxy)phenyl)-N-(4-(selenophen-2-yl)phenyl)aniline 1148130-96-4 C34H41NO2Se
    —— 4-Methyl-undecane-1,4-diol 72473-98-4 C12H26O2