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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4,4,4',4'-tetraethyl-4H,4'H-2,2'-ethane-1,2-diyl-bis-benzo[e][1,3]oxazine 27507-93-3 C26H32N2O2
    4,4,4',4'-tetraethyl-4H,4'H-2,2'-ethane-1,2-diyl-bis-benzo[e][1,3]oxazine
    —— 4-hydroxy-3-(4-oxo-2-piperidin-1-yl-4<i>H</i>-chromen-3-ylmethyl)-chromen-2-one 67717-68-4 C24H21NO5
    4-hydroxy-3-(4-oxo-2-piperidin-1-yl-4<i>H</i>-chromen-3-ylmethyl)-chromen-2-one
    —— 4aR-1-(Aethylen-3',3'-dioxybutyl)aethylen-5,5-dioxy-4a-methyl-2-oxo-perhydronaphthalin 53545-72-5 C19H30O5
    4aR-1-(Aethylen-3',3'-dioxybutyl)aethylen-5,5-dioxy-4a-methyl-2-oxo-perhydronaphthalin
    —— 4-hydroxy-5-methyl-3,7-diphenyl-1<i>H</i>-[1,8]naphthyridin-2-one 102241-45-2 C21H16N2O2
    4-hydroxy-5-methyl-3,7-diphenyl-1<i>H</i>-[1,8]naphthyridin-2-one
    —— [4-(3-{7,12-Bis-[3-(4-hydroxymethyl-2-methoxy-phenoxy)-propoxy]-3,8,13-trimethoxy-10,15-dihydro-5H-tribenzo[a,d,g]cyclononen-2-yloxy}-propoxy)-3-methoxy-phenyl]-methanol 110352-24-4 C57H66O15
    [4-(3-{7,12-Bis-[3-(4-hydroxymethyl-2-methoxy-phenoxy)-propoxy]-3,8,13-trimethoxy-10,15-dihydro-5H-tribenzo[a,d,g]cyclononen-2-yloxy}-propoxy)-3-methoxy-phenyl]-methanol
    —— 4-O-acetyl-5-azido-5-deoxy-1,2-O-isopropylidene-3-O-tosyl-L-vibo-quercitol 861661-12-3 C18H23N3O7S
    4-O-acetyl-5-azido-5-deoxy-1,2-O-isopropylidene-3-O-tosyl-L-vibo-quercitol
    —— 4-Octyl-thiophene-2-carboxylic acid ethyl ester 142976-89-4 C15H24O2S
    4-Octyl-thiophene-2-carboxylic acid ethyl ester
    —— 4,4',5,5'-tetraiododibenzo-18-crown-6 ether 680573-23-3 C20H20I4O6
    4,4',5,5'-tetraiododibenzo-18-crown-6 ether
    —— (4S,5S)-4-[(R,E)-4-tert-butyldiphenylsilyloxypent-1-enyl]-5-[(S)-1-(4-methoxybenzyloxy)but-3-enyl]-2,2-dimethyl-1,3-dioxolane 1403608-18-3 C38H50O5Si
    (4S,5S)-4-[(R,E)-4-tert-butyldiphenylsilyloxypent-1-enyl]-5-[(S)-1-(4-methoxybenzyloxy)but-3-enyl]-2,2-dimethyl-1,3-dioxolane
    —— (4-tert-butylphenyl)-(4,5,7,8-tetrahydroimidazo[4,5-d]azepin-6-yl)methanone 303020-90-8 C18H23N3O
    (4-tert-butylphenyl)-(4,5,7,8-tetrahydroimidazo[4,5-d]azepin-6-yl)methanone
    —— 4-(4-(4-chlorophenyl)piperidin-1-ylsulfonyl)-7-(4-methoxyphenylthio)benzo[c][1,2,5]oxadiazole 1062657-75-3 C24H22ClN3O4S2
    4-(4-(4-chlorophenyl)piperidin-1-ylsulfonyl)-7-(4-methoxyphenylthio)benzo[c][1,2,5]oxadiazole
    —— 4-[4-[[4-[(5-Chloro-1-methylindol-2-yl)sulfonyl]piperazin-1-yl]carbonyl]phenyl]pyridine N-oxide 259803-12-8 C25H23ClN4O4S
    4-[4-[[4-[(5-Chloro-1-methylindol-2-yl)sulfonyl]piperazin-1-yl]carbonyl]phenyl]pyridine N-oxide
    —— 4-((Tert-butoxycarbonyl)amino)-1,2,3,4-tetrahydronaphthalene-1-carboxylic+ 1824346-58-8 C16H21NO4
    4-((Tert-butoxycarbonyl)amino)-1,2,3,4-tetrahydronaphthalene-1-carboxylic+
    —— 4-chloro-7-methyl-1H-indole-5-carboxylic acid [1-(2-methylpyrimidin-5-yl)cyclohexylmethyl]amide 1616256-62-2 C22H25ClN4O
    4-chloro-7-methyl-1H-indole-5-carboxylic acid [1-(2-methylpyrimidin-5-yl)cyclohexylmethyl]amide
    —— 4-Cyclohexyl-1,1-dimethyl-1-silacyclohexa-2,4-dien 71421-46-0 C13H22Si
    4-Cyclohexyl-1,1-dimethyl-1-silacyclohexa-2,4-dien
    —— 4-(benzoylamino)-1-(2'-deoxy-5'-O-(dimethoxytrityl)-β-D-erythro-pentafuranosyl)-1H-pyrazolo<3,4-d>pyrimidine 119803-27-9 C38H35N5O6
    4-(benzoylamino)-1-(2'-deoxy-5'-O-(dimethoxytrityl)-β-D-erythro-pentafuranosyl)-1H-pyrazolo<3,4-d>pyrimidine
    —— 4,4'-[hexa-2,4-diyn-1,6-diylbis(oxy)]dicyclohexanone 1467100-92-0 C18H22O4
    4,4'-[hexa-2,4-diyn-1,6-diylbis(oxy)]dicyclohexanone
    —— 4-(4-chlorobutyl)-2-isopropylphenol 1083427-47-7 C13H19ClO
    4-(4-chlorobutyl)-2-isopropylphenol
    —— 4-Chlor-5-sulfamoyl-N-benzyl-anthranilsaeure-methylester 4793-65-1 C15H15ClN2O4S
    4-Chlor-5-sulfamoyl-N-benzyl-anthranilsaeure-methylester
    —— 4-(3-chlorophenyl)-1-propyl-[1,2,4]triazolo[4,3-a]quinazolin-5(4H)-one 85772-61-8 C18H15ClN4O
    4-(3-chlorophenyl)-1-propyl-[1,2,4]triazolo[4,3-a]quinazolin-5(4H)-one
    —— 4-<(2-Hydroxy-ethyl)-(3-methyl-butyl)-amino>-butanol-(1) 91964-52-2 C11H25NO2
    4-<(2-Hydroxy-ethyl)-(3-methyl-butyl)-amino>-butanol-(1)
    —— 4-(4-(benzyloxy)-3-methoxyphenoxy)butanoic acid 1626424-22-3 C18H20O5
    4-(4-(benzyloxy)-3-methoxyphenoxy)butanoic acid
    —— 4-(1-bromo-ethylidene)-2-phenyl-4<i>H</i>-oxazol-5-one 112575-30-1 C11H8BrNO2
    4-(1-bromo-ethylidene)-2-phenyl-4<i>H</i>-oxazol-5-one
    —— 4-[3-(2-chloro-phenyl)-5-methyl-isoxazole-4-carbonyl]-1H-pyrrole-2-carboxylic acid methyl ester 929890-19-7 C17H13ClN2O4
    4-[3-(2-chloro-phenyl)-5-methyl-isoxazole-4-carbonyl]-1H-pyrrole-2-carboxylic acid methyl ester
    —— 4-Chloro-2-propyl-6,7,8,9-tetrahydro-5H-cycloheptapyrimidine 23920-46-9 C12H17ClN2
    4-Chloro-2-propyl-6,7,8,9-tetrahydro-5H-cycloheptapyrimidine
    —— 4-(1H-imidazol-1-yl)phenyl 2,3,4-tri-O-acetyl-5-thio-β-D-xylopyranoside 1011721-75-7 C20H22N2O7S
    4-(1H-imidazol-1-yl)phenyl 2,3,4-tri-O-acetyl-5-thio-β-D-xylopyranoside
    —— 4-Bromo-3-(methylthio)phenol 1379306-40-7 C7H7BrOS
    4-Bromo-3-(methylthio)phenol
    —— 4-(4-Methoxy-phenyl)-2,6-dimethyl-1,2-dihydro-pyridine-3,5-dicarbonitrile 111512-80-2 C16H15N3O
    4-(4-Methoxy-phenyl)-2,6-dimethyl-1,2-dihydro-pyridine-3,5-dicarbonitrile
    —— 4-amino-5-ethoxy-2-(1,1-dimethyl-ethyl-aminocarbonyl)-2,4-dihydro-3H-1,2,4-triazol-3-one, 162272-20-0 C9H17N5O3
    4-amino-5-ethoxy-2-(1,1-dimethyl-ethyl-aminocarbonyl)-2,4-dihydro-3H-1,2,4-triazol-3-one,
    —— 4-(Benzyl-{3-[((E)-1,2-bis-methoxycarbonyl-vinyl)-isopropyl-amino]-propyl}-amino)-7,7-dimethyl-5-methylsulfanyl-7H-thiochromene-2,3-dicarboxylic acid dimethyl ester 132206-36-1 C35H44N2O8S2
    4-(Benzyl-{3-[((E)-1,2-bis-methoxycarbonyl-vinyl)-isopropyl-amino]-propyl}-amino)-7,7-dimethyl-5-methylsulfanyl-7H-thiochromene-2,3-dicarboxylic acid dimethyl ester
    —— 4-{[2,4-bis(methyloxy)phenyl]methyl}-9-chloro-N-(3,4-dichlorophenyl)-3-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepine-5-carboxamide 1067225-65-3 C25H21Cl3N2O5
    4-{[2,4-bis(methyloxy)phenyl]methyl}-9-chloro-N-(3,4-dichlorophenyl)-3-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepine-5-carboxamide
    —— 4-(((2E)-3-(3,4-Dihydroxyphenyl)-1-oxo-2-propen-1-YL)oxy)-2,3-dihydroxybutanoic acid, (2R,3S)- 147199-44-8 C13H14O8
    4-(((2E)-3-(3,4-Dihydroxyphenyl)-1-oxo-2-propen-1-YL)oxy)-2,3-dihydroxybutanoic acid, (2R,3S)-
    —— 4,5-Dimethyl-3,4-dihydro-2H-1-oxa-4a,9-diaza-fluorene 135348-07-1 C12H14N2O
    4,5-Dimethyl-3,4-dihydro-2H-1-oxa-4a,9-diaza-fluorene
    —— (4R,5S)-3-t-butyloxycarbonyl-5-(N-methoxy-N-methyl)carbamoyl-2,2-dimethyl-4-phenylmethyloxazolidine 204461-08-5 C20H30N2O5
    (4R,5S)-3-t-butyloxycarbonyl-5-(N-methoxy-N-methyl)carbamoyl-2,2-dimethyl-4-phenylmethyloxazolidine
    —— 4-[(2-Phenylphenyl)methylamino]benzoic acid 1067234-85-8 C20H17NO2
    4-[(2-Phenylphenyl)methylamino]benzoic acid
    —— (4-carboxymethyl-3,5-dimethyl-pyrrol-2-yl)-(4-carboxymethyl-3,5-dimethyl-pyrrol-2-ylidene)-methane; hydrobromide 96096-20-7 BrH*C17H20N2O4
    (4-carboxymethyl-3,5-dimethyl-pyrrol-2-yl)-(4-carboxymethyl-3,5-dimethyl-pyrrol-2-ylidene)-methane; hydrobromide
    —— 4-methyl-6-(5-phenylethynyl-pyrimidin-2-yl)-4,6-diaza-spiro[2.4]heptan-5-one 1338492-14-0 C18H16N4O
    4-methyl-6-(5-phenylethynyl-pyrimidin-2-yl)-4,6-diaza-spiro[2.4]heptan-5-one
    —— 4-chloro-2-(((3,5-dimethylisoxazol-4-yl)amino)methyl)phenol 1085234-47-4 C12H13ClN2O2
    4-chloro-2-(((3,5-dimethylisoxazol-4-yl)amino)methyl)phenol
    —— {4-[5-Oxo-2-phenyl-4-(2,2,2-trifluoro-acetyl)-4,5-dihydro-oxazol-4-yl]-butyl}-carbamic acid benzyl ester 106942-42-1 C23H21F3N2O5
    {4-[5-Oxo-2-phenyl-4-(2,2,2-trifluoro-acetyl)-4,5-dihydro-oxazol-4-yl]-butyl}-carbamic acid benzyl ester
    —— 4'-Glyoxyloyl-biphenyl-sulfonsaeure-(4) 92152-18-6 C14H10O5S
    4'-Glyoxyloyl-biphenyl-sulfonsaeure-(4)
    —— 4-(2-fluorobenzylamino)-2-(3-(3-methylureido)phenylamino)pyrimidine-5-carboxamide 1254214-96-4 C20H20FN7O2
    4-(2-fluorobenzylamino)-2-(3-(3-methylureido)phenylamino)pyrimidine-5-carboxamide
    —— 4-ethyl 1-methyl [2R,2(1R)]-2-[2-(tert-butyldiphenylsilyl)oxy-1-[3-(methoxymethoxy)propionyl]oxyethyl]-3-diazo-2-hydroxybutanediote 207124-11-6 C30H40N2O10Si
    4-ethyl 1-methyl [2R,2(1R)]-2-[2-(tert-butyldiphenylsilyl)oxy-1-[3-(methoxymethoxy)propionyl]oxyethyl]-3-diazo-2-hydroxybutanediote
    —— 4-allyl-4-hydroxy-1-(5-nitro-furan-2-carbonyl)-thiosemicarbazide 55242-39-2 C9H10N4O5S
    4-allyl-4-hydroxy-1-(5-nitro-furan-2-carbonyl)-thiosemicarbazide
    —— (4-Aminobutyl)carbamic acid 2,2,2-trichloroethyl ester 181780-43-8 C7H13Cl3N2O2
    (4-Aminobutyl)carbamic acid 2,2,2-trichloroethyl ester
    —— (4R)-3,3-dimethyl-6,10-dithiaspiro[4.5]decan-4-ol 152455-20-4 C10H18OS2
    (4R)-3,3-dimethyl-6,10-dithiaspiro[4.5]decan-4-ol
    —— 4-fluoro-4,4-dinitro-2-butenenitrile 127751-05-7 C4H2FN3O4
    4-fluoro-4,4-dinitro-2-butenenitrile
    —— [4-(1-allyl-1H-indol-6-yl)-5-methylpyrimidin-2-yl]-[3-allyloxymethyl-4-(2-pyrrolidin-1-ylethoxy)phenyl]amine 1364124-02-6 C32H37N5O2
    [4-(1-allyl-1H-indol-6-yl)-5-methylpyrimidin-2-yl]-[3-allyloxymethyl-4-(2-pyrrolidin-1-ylethoxy)phenyl]amine
    —— 4,5α-epoxy-3-methoxy-17-propionyl-6α,14-bis-propionyloxy-morphin-7-ene 102323-40-0 C26H31NO7
    4,5α-epoxy-3-methoxy-17-propionyl-6α,14-bis-propionyloxy-morphin-7-ene
    —— 4-cyano-3-hydroxy-10-methylacridin-9-one 39066-30-3 C15H10N2O2
    4-cyano-3-hydroxy-10-methylacridin-9-one
    —— (+/-)-4-benzyl-N-(9-chloro-3,4-dihydro-2H-1,5-benzodioxepin-7-ylmethyl)-N-isobutylmorpholine-2-carboxamide 1233925-42-2 C26H33ClN2O4
    (+/-)-4-benzyl-N-(9-chloro-3,4-dihydro-2H-1,5-benzodioxepin-7-ylmethyl)-N-isobutylmorpholine-2-carboxamide