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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4a-methyl-1,2,3,4,4a,9,10,10aα-octahydro-1α-phenanthrol 98330-23-5 C15H20O
    4a-methyl-1,2,3,4,4a,9,10,10aα-octahydro-1α-phenanthrol
    —— 4-(1,2-Diaminoethyl)benzene-1,2-dicarboxylicaciddihydrochloride 2248360-45-2 C10H14Cl2N2O4
    4-(1,2-Diaminoethyl)benzene-1,2-dicarboxylicaciddihydrochloride
    —— 4-oxo-2-(2-trifluoromethoxyphenyl)-butyronitrile 636597-91-6 C11H8F3NO2
    4-oxo-2-(2-trifluoromethoxyphenyl)-butyronitrile
    —— 4-((E)-1,1-Dimethyl-4-phenyl-but-2-enyl)-morpholine 122894-89-7 C16H23NO
    4-((E)-1,1-Dimethyl-4-phenyl-but-2-enyl)-morpholine
    —— (4-chloro-phenyl)-(7-methyl-7<i>H</i>-purin-6-yl)-amine; hydrochloride 108871-28-9 C12H10ClN5*ClH
    (4-chloro-phenyl)-(7-methyl-7<i>H</i>-purin-6-yl)-amine; hydrochloride
    —— 4,4'-methylenebis(N-methyl-N-(2,2,2-trifluoroethyl)aniline) 374623-32-2 C19H20F6N2
    4,4'-methylenebis(N-methyl-N-(2,2,2-trifluoroethyl)aniline)
    —— 4-[3-(2-Benzylphenoxy)phenyl]-1-diethoxyphosphorylbutane-1-sulfonic acid 1026294-28-9 C27H33O7PS
    4-[3-(2-Benzylphenoxy)phenyl]-1-diethoxyphosphorylbutane-1-sulfonic acid
    —— 4-(1,3-Dioxo-1λ<sup>4</sup>,3λ<sup>4</sup>-[1,3]dithian-2-ylidene)-3,3,N-trimethyl-N-phenyl-butyramide 90605-55-3 C17H23NO3S2
    4-(1,3-Dioxo-1λ<sup>4</sup>,3λ<sup>4</sup>-[1,3]dithian-2-ylidene)-3,3,N-trimethyl-N-phenyl-butyramide
    —— 4-Cyano-4,5,5-trimethyloxazolid-2-on 89943-24-8 C7H10N2O2
    4-Cyano-4,5,5-trimethyloxazolid-2-on
    —— 4-cyclopropyl-9-methyl-3-phenyl-9H-pyrido[3,4-b]indole 1218948-17-4 C21H18N2
    4-cyclopropyl-9-methyl-3-phenyl-9H-pyrido[3,4-b]indole
    —— 4-(((tert-butoxycarbonyl)amino)(3,4-difluorophenyl)methyl)benzyl methanesulfonate 1189175-24-3 C20H23F2NO5S
    4-(((tert-butoxycarbonyl)amino)(3,4-difluorophenyl)methyl)benzyl methanesulfonate
    —— 4-(3-trifluoromethyl-benzylideneamino)-2,4-dihydro-[1,2,4]triazol-3-one 56290-96-1 C10H7F3N4O
    4-(3-trifluoromethyl-benzylideneamino)-2,4-dihydro-[1,2,4]triazol-3-one
    —— 4-[(4-hydroxyphenyl)sulphonylamino]benzonitrile 149505-53-3 C13H10N2O3S
    4-[(4-hydroxyphenyl)sulphonylamino]benzonitrile
    —— 4,4'-bis(morpholinocarbonyl)azobenzene 74277-88-6 C22H24N4O4
    4,4'-bis(morpholinocarbonyl)azobenzene
    —— 4-(4-Chloro-phenylsulfanyl)-1-((2R,3aS,9aR)-5,5,7,7-tetraisopropyl-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-2-yl)-1H-pyrimidin-2-one 99680-08-7 C27H41ClN2O5SSi2
    4-(4-Chloro-phenylsulfanyl)-1-((2R,3aS,9aR)-5,5,7,7-tetraisopropyl-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-2-yl)-1H-pyrimidin-2-one
    —— 4,4''-bis-(α-chloro-benzhydryl)-p-terphenyl 854749-71-6 C44H32Cl2
    4,4''-bis-(α-chloro-benzhydryl)-p-terphenyl
    —— 4,5-Dihydro-2-(3,7-dichloroquinol-8-yl)-oxazole 109623-41-8 C12H8Cl2N2O
    4,5-Dihydro-2-(3,7-dichloroquinol-8-yl)-oxazole
    —— 4-[(2S,3R)-3-[(3S)-3-(acetyloxy)-3-(4-fluorophenyl)propyl]-2-(4-iodophenyl)-4-oxoazetidin-1-yl]phenyl acetate 1025468-49-8 C28H25FINO5
    4-[(2S,3R)-3-[(3S)-3-(acetyloxy)-3-(4-fluorophenyl)propyl]-2-(4-iodophenyl)-4-oxoazetidin-1-yl]phenyl acetate
    —— ((4aS,8aR)-1,1-dioxo-4a,5,6,7,8,8a-hexahydro-1H-1λ<sup>6</sup>-benzo[1,4,3]oxathiazin-3-yl)-(4-fluoro-bicyclo[2.2.2]oct-1-yl)-amine 1398605-80-5 C15H23FN2O3S
    ((4aS,8aR)-1,1-dioxo-4a,5,6,7,8,8a-hexahydro-1H-1λ<sup>6</sup>-benzo[1,4,3]oxathiazin-3-yl)-(4-fluoro-bicyclo[2.2.2]oct-1-yl)-amine
    —— (4-Methyl-2-oxo-2λ<sup>5</sup>-[1,3,2]dioxaphospholan-2-yl)-acetic acid ethyl ester 20608-19-9 C7H13O5P
    (4-Methyl-2-oxo-2λ<sup>5</sup>-[1,3,2]dioxaphospholan-2-yl)-acetic acid ethyl ester
    —— 4-n-Phenoxyphenazon 101275-18-7 C16H22N2O2
    4-n-Phenoxyphenazon
    —— 4-Ethoxycarbonyl-3-amino-5-cyan-1H-pyridin-2-on 99358-83-5 C9H9N3O3
    4-Ethoxycarbonyl-3-amino-5-cyan-1H-pyridin-2-on
    —— 4-Methylsulfanyl-2-oxo-10-phenyl-2H-pyrano[2,3-b]indolizine-3-carboxylic acid ethyl ester 75174-41-3 C21H17NO4S
    4-Methylsulfanyl-2-oxo-10-phenyl-2H-pyrano[2,3-b]indolizine-3-carboxylic acid ethyl ester
    —— 4-(3-methoxy-phenyl)-5-methyl-hexanenitrile 107100-58-3 C14H19NO
    4-(3-methoxy-phenyl)-5-methyl-hexanenitrile
    —— 4-Diethylamino-3-phenyl-5,6-dihydro-1,7-dioxa-dibenzo[a,c]cyclohepten-2-one 135618-26-7 C23H23NO3
    4-Diethylamino-3-phenyl-5,6-dihydro-1,7-dioxa-dibenzo[a,c]cyclohepten-2-one
    —— 4-(3-chloropyridin-2-yl)-3-fluoro-N-quinolin-6-ylbenzamide 849755-18-6 C21H13ClFN3O
    4-(3-chloropyridin-2-yl)-3-fluoro-N-quinolin-6-ylbenzamide
    —— 4-[5-(chloro-cyclohexyl-methyl)-6-methyl-pyridin-2-yl]-5-isopropyl-1H-indazole 693278-19-2 C23H28ClN3
    4-[5-(chloro-cyclohexyl-methyl)-6-methyl-pyridin-2-yl]-5-isopropyl-1H-indazole
    —— 4,4'-bis(3,3',4,4'-tetramethyl-5,5'-dicarboxy-2,2'-dipyrrylmethyl)-2,2'-dimethyl-1,1'-biphenyl 142068-88-0 C44H46N4O8
    4,4'-bis(3,3',4,4'-tetramethyl-5,5'-dicarboxy-2,2'-dipyrrylmethyl)-2,2'-dimethyl-1,1'-biphenyl
    —— 4-(ethoxycarbonyl)-2,6-bis(2-hydroxy-5-methyl-α-tolyl)phenol 133871-46-2 C25H26O5
    4-(ethoxycarbonyl)-2,6-bis(2-hydroxy-5-methyl-α-tolyl)phenol
    —— 4-{[1-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-meth-(E)-ylidene]-amino}-5-(4-chloro-phenoxymethyl)-4H-[1,2,4]triazole-3-thiol 261156-05-2 C20H16Cl2N6OS
    4-{[1-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-meth-(E)-ylidene]-amino}-5-(4-chloro-phenoxymethyl)-4H-[1,2,4]triazole-3-thiol
    —— 4-[(3R)-3-methylcyclohexen-1-yl]morpholine 79715-51-8 C11H19NO
    4-[(3R)-3-methylcyclohexen-1-yl]morpholine
    —— 4-methyl-2-undecyl-2,5-dihydrofuran 594822-34-1 C16H30O
    4-methyl-2-undecyl-2,5-dihydrofuran
    —— 4-Amino-1-[(2R,3R,4R,5R)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-(1-hydroxy-but-3-enyl)-tetrahydro-furan-2-yl]-1H-pyrimidin-2-one 603114-01-8 C24H45N3O5Si2
    4-Amino-1-[(2R,3R,4R,5R)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-(1-hydroxy-but-3-enyl)-tetrahydro-furan-2-yl]-1H-pyrimidin-2-one
    —— (4S,6S,8S)-6-(tert-butyldimethylsilyloxy)-8-methoxytridec-1-en-4-ol 1300024-16-1 C20H42O3Si
    (4S,6S,8S)-6-(tert-butyldimethylsilyloxy)-8-methoxytridec-1-en-4-ol
    —— 4,8-anhydro-1,3,7-trideoxy-7-C-(ethoxycarbonyl)methyl-D-allo-2-octulose 115802-41-0 C12H20O6
    4,8-anhydro-1,3,7-trideoxy-7-C-(ethoxycarbonyl)methyl-D-allo-2-octulose
    —— (4-oxoazetidin-2-yl) (2S)-2-aminopropanoate 79857-18-4 C6H10N2O3
    (4-oxoazetidin-2-yl) (2S)-2-aminopropanoate
    —— 4-(3-Methylbutanoyl)azetidin-2-one 132167-01-2 C8H13NO2
    4-(3-Methylbutanoyl)azetidin-2-one
    —— 4-cyclohexyl-2-methyl-5-phenyl-1(3)H-imidazole 111529-33-0 C16H20N2
    4-cyclohexyl-2-methyl-5-phenyl-1(3)H-imidazole
    —— 4,5-Dipiperidino-1,2-diphenylimidazol 65033-79-6 C25H30N4
    4,5-Dipiperidino-1,2-diphenylimidazol
    —— 4-methyl-N-(3-phenylpentyl)benzenesulfonamide 1046826-34-9 C18H23NO2S
    4-methyl-N-(3-phenylpentyl)benzenesulfonamide
    —— (4-imino-2-oxo-3-phenyl-pyrrolidino)-acetonitrile 99989-06-7 C12H11N3O
    (4-imino-2-oxo-3-phenyl-pyrrolidino)-acetonitrile
    —— 4,4-Dicyclopropyl-1-trifluoracetoxy-butan 24321-74-2 C12H17F3O2
    4,4-Dicyclopropyl-1-trifluoracetoxy-butan
    —— 4-<2-<2-<<(2R,3S)-3-<<N<sup>α</sup>,N<sup>im</sup>-bis(tert-butoxycarbonyl)-L-histidyl>amino>-4-cyclohexyl-2-hydroxy-1-butyl>sulfonyl>acetamido>ethyl>morpholine 142843-13-8 C34H58N6O10S
    4-<2-<2-<<(2R,3S)-3-<<N<sup>α</sup>,N<sup>im</sup>-bis(tert-butoxycarbonyl)-L-histidyl>amino>-4-cyclohexyl-2-hydroxy-1-butyl>sulfonyl>acetamido>ethyl>morpholine
    —— 4-(4-methoxyphenyl)-2-(trichloromethyl)-2,3-dihydro-1H-1,5-benzodiazepine 78159-80-5 C17H15Cl3N2O
    4-(4-methoxyphenyl)-2-(trichloromethyl)-2,3-dihydro-1H-1,5-benzodiazepine
    —— 4-(α-Carboxymethylimino-α-methylmercapto-methyl)-1,2-diphenyl-3,5-dioxo-pyrazolidin 19744-43-5 C19H17N3O4S
    4-(α-Carboxymethylimino-α-methylmercapto-methyl)-1,2-diphenyl-3,5-dioxo-pyrazolidin
    —— (4a,11a-Dihydro-benzo<b>cyclohexano<f>-1,4-thiazepin-(11))-<3-ethyl-benzthiazol-(2)>-trimethincyanin-hydrochlorid 21408-38-8 C25H26N2S2*ClH
    (4a,11a-Dihydro-benzo<b>cyclohexano<f>-1,4-thiazepin-(11))-<3-ethyl-benzthiazol-(2)>-trimethincyanin-hydrochlorid
    —— (4-Bromo-phenyl)-[1-(2-pentyloxy-phenyl)-meth-(E)-ylidene]-amine 5219-37-4 C18H20BrNO
    (4-Bromo-phenyl)-[1-(2-pentyloxy-phenyl)-meth-(E)-ylidene]-amine
    —— 4-Methyl-5-(2-diethylamino-ethyl)-1,2-dihydro-pyrrolo<3.2.1-hi>indol 100769-20-8 C17H24N2
    4-Methyl-5-(2-diethylamino-ethyl)-1,2-dihydro-pyrrolo<3.2.1-hi>indol
    —— 4,4'-Dibrom-3,3'-dinitro-azoxybenzol-2,2'-dicarbonsaeure-dimethylester 111637-48-0 C16H10Br2N4O9
    4,4'-Dibrom-3,3'-dinitro-azoxybenzol-2,2'-dicarbonsaeure-dimethylester
    —— {4-bromo-2-[1-(2,6-dichlorophenyl)-1H-pyrazole-4-carbonyl]phenoxy}acetic acid ethyl ester 939437-77-1 C20H15BrCl2N2O4
    {4-bromo-2-[1-(2,6-dichlorophenyl)-1H-pyrazole-4-carbonyl]phenoxy}acetic acid ethyl ester