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    —— 4-chloro-5-hydroxy-2-<i>p</i>-tolyl-2<i>H</i>-pyridazin-3-one 64178-69-4 C11H9ClN2O2
    —— 4-methanesulfonyl-benzaldehyde <i>O</i>-(2-morpholin-4-yl-ethyl)-oxime 61819-98-5 C14H20N2O4S
    —— 4-<1-(3-p-tolyladamantyl)>-3-N,N-dimethylaminofuroxan 120340-73-0 C21H27N3O2
    —— 4-(4-chloro-phenyl)-6-methylsulfanyl-2-phenyl-pyrimidine-5-carbonitrile 68473-02-9 C18H12ClN3S
    —— 4-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)phenoxy)butyloxyacetone O-isopropyloxime 214704-40-2 C19H25Cl4NO4
    —— 4-Acetoxy-5-methoxycoumarin 67964-30-1 C12H10O5
    —— 4-[2-(3,4-Dimethyl-6-oxo-1,6-dihydro-pyrano[2,3-c]pyrazol-5-yl)-ethyl]-4-methyl-morpholin-4-ium; iodide 67056-44-4 C15H22N3O3*I
    —— 4-(5-Diethylamino-pentyloxy)-furo[3,2-g]chromen-7-one; hydrochloride 69150-21-6 C20H25NO4*ClH
    —— 4-ethyl-1-(3-pyridyl)-homopiperazine fumaric acid salt 223796-19-8 C4H4O4*C12H19N3
    —— 4(S)-N-p-toluenesulfonylamino-2(E)-nonenal 125010-83-5 C16H23NO3S
    —— 4-(o-Chlorbenzoyl)-3-(o-chlorphenyl)-5-(o-hydroxyphenyl)-pyrazol 66033-29-2 C22H14Cl2N2O2
    —— 4-(4-aminobutanoylamino)-N-[5-[[5-[3-(dimethylamino)propylcarbamoyl]-1-methylpyrrol-3-yl]carbamoyl]-1-methylpyrrol-3-yl]-1-methylpyrrole-2-carboxamide 118970-75-5 C27H39N9O4
    —— 4-(5-Chloro-2-methyl-phenylazo)-3-hydroxy-naphthalene-2-carboxylic acid (1,3-dioxo-2-phenyl-2,3-dihydro-1H-isoindol-5-yl)-amide 66266-50-0 C32H21ClN4O4
    —— 4-amino-3-butyl-6-phenyl-3,7-dihydro-pyrimido[5,4-<i>d</i>]pyrimidine-2,8-dione 66482-92-6 C16H17N5O2
    —— 4,9-dioxo-4,9-dihydro-1<i>H</i>-benzo[<i>f</i>]indazole-3-carboxylic acid amide 71709-57-4 C12H7N3O3
    —— 4,5-Diphenyl-3-(4-piperidin-1-yl-but-2-ynyl)-3H-oxazol-2-one; hydrochloride 68718-58-1 C24H24N2O2*ClH
    —— (4R,4aS,6aR,8R,9S,11aR,11bS)-8-hydroxy-9-(hydroxymethyl)-4,11b-dimethyltetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylic acid 1467078-14-3 C20H32O4
    —— 4-chloro-7-ethenyl-7H-pyrrolo[2,3-d]pyrimidin-2-amine 1196454-82-6 C8H7ClN4
    —— 4-(N,N-bis[3-(lignocerylamido)propyl]amino)maleyl-L-argininamide TFA salt 1350564-89-4 C2HF3O2*C64H124N8O5
    —— (4R,6S,7S)-5,5,7-Trichloro-4,6-dihydroxy-1-methyl-2-oxa-bicyclo[2.2.1]heptan-3-one 65514-33-2 C7H7Cl3O4
    —— 4-((2-tert-Butoxycarbonylaminoethyl){4-[4-(4-fluoro-3-methylphenylamino)pyrimidin-2-ylamino]benzene-sulfonyl}amino)piperidine-1-carboxylic acid tert-butyl ester 919834-85-8 C34H46FN7O6S
    —— 4,7-bis(diphenylamino)benz[a]anthracene 1087380-37-7 C42H30N2
    —— 4-(benz[a]anthracen-5-yl)benz[a]anthracene 1087347-01-0 C36H22
    —— (4aS,5S,6S,8aS)-2-Trichloromethyl-5,6-bis-trimethylsilanyloxy-4a,6,7,8a-tetrahydro-5H-pyrano[3,2-e][1,3]oxazin-4-one 114717-61-2 C14H24Cl3NO5Si2
    —— 4-(2-(2,2'-bithiophen-5-yl)pyrimidin-4-yl)morpholine 1351934-02-5 C16H15N3OS2
    —— 4-(2,4-diaminophenyl)butyl (2E)-3-[4-(difluoro{4-[(4,4,5,5,5-pentafluoropentyl)oxy]phenyl}-methoxy)phenyl]prop-2-enoate 1345473-55-3 C31H31F7N2O4
    —— 4-fluoro-2-[2-(3-fluoro-anilino)-thiazol-4-yl]-phenol 1493-48-7 C15H10F2N2OS
    —— 4,7,9-trichloro-1,2-dimethyl-1<i>H</i>-perimidine 68049-10-5 C13H9Cl3N2
    —— (4R)-4-[[7-[3-methoxy-4-(1-methylpiperidin-4-yl)oxyphenyl]-1,6-naphthyridin-5-yl]oxymethyl]pyrrolidin-2-one 1319739-37-1 C26H30N4O4
    —— 4-diethylamino-1,2-diphenyl-2-buten-1-ol (Z) hydrochloride 102360-44-1 C20H25NO*ClH
    —— 4-(2,6-Dichlorphenyl)-3-methoxycarbonyl-pyrrolidin-2-on 22482-42-4 C12H11Cl2NO3
    —— (4-Methoxy-3-methylphenyl)hydrazine hydrochloride 876299-35-3 C8H12N2O*ClH
    —— 4-(3-methoxyphenyl)-4-piperidinecarbonitrile hydrochloride 553631-43-9 C13H16N2O*ClH
    —— 4-chloro-N-{(1S)-2-hexyl-2-hydroxy-1-[(1S)-1-methylpropyl]octyl}benzenesulfonamide 635290-76-5 C24H42ClNO3S
    —— 4-((3-(4-(1H-pyrazol-4-yl)phenyl)ureido)methyl)-N-(2-morpholinoethyl)benzamide 1219721-45-5 C24H28N6O3
    —— 4-[5-(4-benzyloxy-3-ethyl-5-methyl-phenyl)-[1,3,4]thiadiazol-2-yl]-2-isopropyl-6-methyl-pyridine 1011264-42-8 C27H29N3OS
    —— 4-(Perfluorobutyl)-3,3-difluorobutanol 1-(dihydrogen phosphate) ammonium salt (1:2) 1025044-20-5 C8H14F11N2O3P
    —— 4,5-Tetramethylen-6-methyl-3-pyridazinol 90437-08-4 C9H12N2O
    —— 4-Benzyl-N-(3-chloro-4-methylphenyl)-1-piperidinecarboxamide 847477-59-2 C20H23ClN2O
    —— (4-Chlorophenyl)[1-(2-{[5-nitro-2-(2-pyridinylsulfanyl)benzyl]amino}ethyl)-4-piperidinyl]methanone 298697-61-7 C26H27ClN4O3S
    —— 4-(3-Isopropoxypropylamino)-6-dimethylaminopyrimidin 58514-93-5 C12H22N4O
    —— 4-Isopropyl-1-methyl-3-trimethylstannanyl-cyclohexanol 63831-62-9 C13H28OSn
    —— 4-amino-1-methoxy-[2]naphthoic acid 149649-55-8 C12H11NO3
    —— (4S,4aR,5R)-1-Acetoxy-4-isopropenyl-4a,5-dimethyl-3,4,4a,5,6,7-hexahydronaphthalene 139541-72-3 C17H24O2
    —— (4-Chlorophenyl)[1-(2-{[(1-methyl-1H-benzimidazol-2-yl)methyl]amino}ethyl)-4-piperidinyl]methanone 298697-91-3 C23H27ClN4O
    —— 4-methoxy-4-(pent-3-yn-1-yl)cyclohexa-2,5-dien-1-one 1449769-99-6 C12H14O2
    —— 4-[-2-(1,2,3,4,4a,9b-Hexahydro-1,4a,9b-trimethyl-1,4-methanodibenzofuran-8-yl)ethynyl]-2-thiophenecarboxylic acid 206859-95-2 C23H22O3S
    —— 4-Hydroxy-3-nitro-6-methyl-propiophenon 90922-90-0 C10H11NO4
    —— 4-Amino-7-methoxy-2-(5-methanesulfonamido-1,2,3,4-tetrahydroisoquinol-2-yl)-6-(2-pyridinyl)quinoline 215659-37-3 C25H25N5O3S
    —— (4-Acetylamino-phenyl)-(3,3-dimethyl-ureido)-acetic acid methyl ester 66741-34-2 C14H19N3O4