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    —— 4-benzyloxycarbonylamino-4-(1<i>H</i>-tetrazol-5-yl)-butyric acid 4-nitro-phenyl ester 51782-13-9 C19H18N6O6
    —— (4aR,6bS,8aR,12aS,12bS)-2,2,6b,9,9,12a-Hexamethyl-10,13-dioxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid 55497-80-8 C29H42O4
    —— 4-chloro-6-(methylthio)-2-(1H-pyrazol-1-yl)pyrimidine-5-carbonitrile 1632027-87-2 C9H6ClN5S
    —— 4-(diphenyl-[1,2,4]triazol-1-yl-methyl)-benzophenone 34974-14-6 C28H21N3O
    —— 4-(3-fluorobenzylamino)-6-(3-(piperidin-1-yl)phenylamino)nicotinamide 1374211-03-6 C24H26FN5O
    —— 4-[2-(3,4,5-trimethoxyphenyl)furo[3,2-b]pyridin-7-yl]-phenylamine 1360904-68-2 C22H20N2O4
    —— 4-Ethoxycarbonylacetamidindan-1,3-dion 53981-14-9 C14H13NO5
    —— 4-methyl-benzoic acid 2-[1-(4-methyl-benzoyl)-1<i>H</i>-imidazol-2-yl]-1-<i>p</i>-tolyl-vinyl ester 52855-72-8 C28H24N2O3
    —— 4-Cyclohex-1-enyl-1-ethoxy-2-methyl-but-3-yn-2-ol 53135-77-6 C13H20O2
    —— 4-(2,3-Xylyl)pentylformiat 57163-46-9 C14H20O2
    —— 4-anilino-6-methyl-2-thioxo-1,2-dihydro-pyrimidine-5-carboxylic acid ethyl ester 43106-97-4 C14H15N3O2S
    —— 4-(p-Methoxybenzyl)-3-morpholino-6-phenylpyridazin 51672-06-1 C22H23N3O2
    —— 4-methyl-3-methylsulfanyl-5-oxo-4,5-dihydro-[1,2,4]triazine-6-carboxylic acid isopropyl ester 51943-01-2 C9H13N3O3S
    —— 4-((E)-2-Methoxycarbonyl-vinyl)-3,5-dimethyl-1H-pyrrole-2-carboxylic acid methyl ester 50622-76-9 C12H15NO4
    —— 4-Methoxy-acetophenon-(propyl)-hydrazon 51486-88-5 C12H18N2O
    —— 4-Oxo-5-(2-furfuryl)-7-chloro-4,5-dihydrofuro<2,3-d>pyridazine 54073-72-2 C11H7ClN2O3
    —— 4-[1-(2-Methylsulfanyl-pyrimidin-4-yl)-2-(3-trifluoromethyl-phenyl)-1H-imidazol-4-yl]-piperidine-1-carboxylic acid ethyl ester 742079-02-3 C23H24F3N5O2S
    —— 4-(11-hydroxy-3,20-dioxo-pregna-1,4-dien-21-oyl)-morpholine 69607-68-7 C25H33NO5
    —— 4-(<i>N</i>'-carbamimidoyl-guanidino)-1-methyl-pyrrole-2-carboxylic acid ethyl ester 99180-62-8 C10H16N6O2
    —— 4-(4-chloro-phenyl)-3,5-bis-methylsulfanyl-4<i>H</i>-[1,2,4]triazole 42254-18-2 C10H10ClN3S2
    —— 4-(4-methoxy-benzenesulfonyl)-3-methyl-1(2)<i>H</i>-pyrazole 51105-58-9 C11H12N2O3S
    —— 4-{4-[bis-(4-dimethylamino-phenyl)-phenyl-λ<sup>5</sup>-phosphanylideneamino]-benzylidene}-5-methyl-1-phenyl-2,4-dihydro-pyrazol-3-one 51570-82-2 C39H38N5OP
    —— 4-[3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1<i>H</i>-pyrazol-4-yl)-thioureido]-2-hydroxy-benzoic acid propyl ester 40097-69-6 C22H24N4O4S
    —— [(4-Acetyl-phenyl)-hydrazono]-phenyl-acetonitrile 41783-80-6 C16H13N3O
    —— (4-tert-Butyl-1-methoxycarbonylmethylsulfanyl-cyclohexylsulfanyl)-acetic acid methyl ester 35876-92-7 C16H28O4S2
    —— 4-anilino-2-(2-nitro-phenyl)-5-oxo-2,5-dihydro-furan-3-carboxylic acid methyl ester 59234-30-9 C18H14N2O6
    —— 4-ethyl-1-(3,4-dimethoxy-phenyl)-6,7-dimethoxy-3-methyl-isochromenylium; chloride 2029-89-2 C22H25O5*Cl
    —— 4,6-dimethyl-2,8-diphenyl-1,9-dithia-3,4,6,7-tetraazaspiro[4.5]dec-2,7-diene 1338470-40-8 C18H18N4S2
    —— (4S,5S,8S,9S,10S,13S,14S,17R)-2-[1-Butylsulfanyl-meth-(Z)-ylidene]-17-((R)-1-hydroxy-1,5-dimethyl-hex-4-enyl)-4,8,10,14-tetramethyl-hexadecahydro-cyclopenta[a]phenanthren-3-one 33426-05-0 C34H56O2S
    —— 4-benzenesulfonyl-1-phenyl-1,2,3a,4-tetrahydro-thiazolo[3,2-<i>a</i>]quinazolin-5-one 33268-15-4 C22H18N2O3S2
    —— 4-Methyl-5,7-nonadien-1-ol 37443-60-0 C10H18O
    —— [(4-tert-Butyl-phenyl)-phenyl-methyl]-fluoro-diphenyl-silane 30437-02-6 C29H29FSi
    —— 4-Methoxy-9-oxo-6-ethyl-1,2,6,9-tetrahydro-furo<3,2-f>chinolin-8-carbonsaeure 39487-42-8 C15H15NO5
    —— (4-{[(E)-4-Bromo-phenylimino]-methyl}-2-methoxy-phenoxy)-acetic acid ethyl ester 51264-94-9 C18H18BrNO4
    —— 4-[(5-fluoro-2-methylphenyl)methyl]-2-(4-morpholinyl)[1,3]thiazolo[4,5-d]pyrimidin-7(4H)-one 1256289-47-0 C17H17FN4O2S
    —— 4-benzylidene-2-isopropoxy-4<i>H</i>-thiazol-5-one 33665-09-7 C13H13NO2S
    —— 4,5,7-Tris-propylsulfanyl-1,3-dihydro-spiro[benzoimidazole-2,1'-cyclohexane] 172362-93-5 C21H34N2S3
    —— 4-[5-tert-butyl-3-(4-fluorobenzyl)furan-2-carbonyl]-3-hydroxy-1-isopropyl-1,5-dihydropyrrol-2-one 500366-05-2 C23H26FNO4
    —— 4-(4-fluoro-2-methylphenoxy)-N-(methylsulfonyl)benzamide 1354958-99-8 C15H14FNO4S
    —— 4-bromo-N-(4-(4-(2-(tert-butyl)-6-(chlorodifluoromethyl)pyrimidin-4-yl)-1,4-diazepan-1-yl)butyl)benzamide oxalate 193608-01-4 C2H2O4*C25H33BrClF2N5O
    —— 4-[(3R)-3-(methylamino)pyrrolidin-1-yl]-7,8,9,10-tetrahydropyrido[1',2':1,5]pyrazolo[4,3-d]pyrimidin-2-amine 1222954-90-6 C14H21N7
    —— 4-((2S,3R,4R)-3-Benzoyloxy-4-benzoyloxymethyl-tetrahydro-furan-2-yl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid ethyl ester 79184-39-7 C25H26N2O7
    —— 4-[(5,5-Dimethyl-3-oxocyclohexen-1-yl)amino]-3-nitrobenzonitrile 1186126-03-3 C15H15N3O3
    —— 4-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,8-oxo-7-[(2-thienylacetyl)amino]-, trans- 62676-09-9 C13H12N2O4S2
    —— 4-methyl-2,3-seco-5α-cholestane-1,3-diene 95237-38-0 C28H48
    —— 4-Morpholino-3,4-bis-<methoxycarbonyl>-buttersaeure-methylester 91952-78-2 C13H21NO7
    —— 4-(2H-indazol-2-yl)-3,5-dimethylisoxazole 1173702-02-7 C12H11N3O
    —— 4-Azidocarbonyl-5-methyl-2-phenyl-1,2,3-triazole-3-oxide 216065-32-6 C10H8N6O2
    —— 4,12-Dimethyl<2<sub>4</sub>>(1,2,4,5)cyclophan 86167-47-7 C22H24
    —— 4-[1-(1,3-thiazol-2-ylcarbonyl)azetidin-3-yl]-1-({4-[3-(trifluoromethyl)benzyl]phenyl}carbonyl)piperidine 1373356-04-7 C27H26F3N3O2S