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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-Benzo[d]imidazo[2,1-b]thiazol-2-yl-2-nitro-phenol 79889-53-5 C15H9N3O3S
    4-Benzo[d]imidazo[2,1-b]thiazol-2-yl-2-nitro-phenol
    —— 4,8-bis(ethoxycarbonyl)<2.2>paracyclophane 107170-85-4 C22H24O4
    4,8-bis(ethoxycarbonyl)<2.2>paracyclophane
    —— 4,4-difluoro-17β-(cyclopropyloxy)androst-5-en-3β-ol 132550-60-8 C22H32F2O2
    4,4-difluoro-17β-(cyclopropyloxy)androst-5-en-3β-ol
    —— (4S,5S)-4-tert-butyl-5-methoxy-1-[(1S,2R,4R)-2-methoxy-7,7-dimethylbicyclo[2.2.1]heptane-1-carbonyl]imidazolidin-2-one 799261-59-9 C19H32N2O4
    (4S,5S)-4-tert-butyl-5-methoxy-1-[(1S,2R,4R)-2-methoxy-7,7-dimethylbicyclo[2.2.1]heptane-1-carbonyl]imidazolidin-2-one
    —— [(4-chlorophenyl)-[(4-chlorophenyl)-trimethylsilyloxymethyl]sulfanylmethoxy]-trimethylsilane 82237-90-9 C20H28Cl2O2SSi2
    [(4-chlorophenyl)-[(4-chlorophenyl)-trimethylsilyloxymethyl]sulfanylmethoxy]-trimethylsilane
    —— 4-(4-propylcyclohexyl)benzoyl chloride 81005-00-7 C16H21ClO
    4-(4-propylcyclohexyl)benzoyl chloride
    —— 4-Trifluormethyl-2-<divinylsulfonylamino>-benzophenon 18509-86-9 C18H14F3NO5S2
    4-Trifluormethyl-2-<divinylsulfonylamino>-benzophenon
    —— 4-[(3-amino-1-hydroxy-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)oxy]benzonitrile hydrochloride 1258546-21-2 C16H13N3O3*ClH
    4-[(3-amino-1-hydroxy-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)oxy]benzonitrile hydrochloride
    —— 4-(4-Bromo-benzenesulfonyl)-pentan-2-ol 81513-64-6 C11H15BrO3S
    4-(4-Bromo-benzenesulfonyl)-pentan-2-ol
    —— [4-(3,4-dichlorobenzylamino)-5,6,7,8-tetrahydrobenzo[4,5]thieno-[2,3-d]pyrimidin-2-ylethoxy]acetic acid 1099109-83-7 C21H21Cl2N3O3S
    [4-(3,4-dichlorobenzylamino)-5,6,7,8-tetrahydrobenzo[4,5]thieno-[2,3-d]pyrimidin-2-ylethoxy]acetic acid
    —— 4-[N-(3-(N-benzyl-N-methyl-amino)-propyl)-N-methylsulphonyl-amino]-aniline 334952-24-8 C18H25N3O2S
    4-[N-(3-(N-benzyl-N-methyl-amino)-propyl)-N-methylsulphonyl-amino]-aniline
    —— 4-(1-ethyl-imidazol-2-yl)-aniline 334952-42-0 C11H13N3
    4-(1-ethyl-imidazol-2-yl)-aniline
    —— 4-(3-chloro-2-fluorophenylamino)-7-(2-methoxyethoxy)-6-(4-methylpiperazin-1-yl)cinnoline-3-carboxamide 1041852-68-9 C23H26ClFN6O3
    4-(3-chloro-2-fluorophenylamino)-7-(2-methoxyethoxy)-6-(4-methylpiperazin-1-yl)cinnoline-3-carboxamide
    —— 4-methoxycarbonylphenyl(4-vinylphenyl)methanol 1246271-80-6 C17H16O3
    4-methoxycarbonylphenyl(4-vinylphenyl)methanol
    —— (4R,5S)-5-methyl-5-nitro-4-phenyltetrahydro-2H-pyran-2-one 1261267-49-5 C12H13NO4
    (4R,5S)-5-methyl-5-nitro-4-phenyltetrahydro-2H-pyran-2-one
    —— 4-carbamoyl-2-isobutyl-5-thiophen-2-yl-1-[1-(3-trifluoromethylphenyl)methanoyl]pyrrolidine-2-carboxylic acid 373593-60-3 C22H23F3N2O4S
    4-carbamoyl-2-isobutyl-5-thiophen-2-yl-1-[1-(3-trifluoromethylphenyl)methanoyl]pyrrolidine-2-carboxylic acid
    —— (4S,5S,9S,10R,11R,2Z)-11-hydroxy-4,10-dimethyl-7-methylene-5,9-bis[(S)-1-phenylethoxy]tridec-2-en-3-yl benzoate 1172135-74-8 C39H50O5
    (4S,5S,9S,10R,11R,2Z)-11-hydroxy-4,10-dimethyl-7-methylene-5,9-bis[(S)-1-phenylethoxy]tridec-2-en-3-yl benzoate
    —— (4R,6R,E)-methyl 2,4,6-trimethyl-7-(trityloxy)hept-2-enoate 1242061-30-8 C30H34O3
    (4R,6R,E)-methyl 2,4,6-trimethyl-7-(trityloxy)hept-2-enoate
    —— (4E,8E)-4,8-dimethyl-11-phenylundeca-4,8-dienal 1194019-72-1 C19H26O
    (4E,8E)-4,8-dimethyl-11-phenylundeca-4,8-dienal
    —— 4-[8-fluoro-1-(4-fluorophenyl)methyl-4(1H)-quinolinon-3-yl]-2-hydroxy-4-oxo-2-butenoic acid ethyl ester 1043896-86-1 C22H17F2NO5
    4-[8-fluoro-1-(4-fluorophenyl)methyl-4(1H)-quinolinon-3-yl]-2-hydroxy-4-oxo-2-butenoic acid ethyl ester
    —— 4-[5-fluoro-2-oxo-1-(2-trifluoromethyl-benzyl)-1,2,3,4-tetrahydro-quinolin-3-ylmethyl]-benzoic acid 1247021-08-4 C25H19F4NO3
    4-[5-fluoro-2-oxo-1-(2-trifluoromethyl-benzyl)-1,2,3,4-tetrahydro-quinolin-3-ylmethyl]-benzoic acid
    —— 4-[4-(5-hydantoin)butyl]-2-chloro-4H-imidazo[4,5-b]pyridine 1303991-02-7 C13H14ClN5O2
    4-[4-(5-hydantoin)butyl]-2-chloro-4H-imidazo[4,5-b]pyridine
    —— 4-bromo-2-(2-bromo-ethyl)-butyric acid ethyl ester 857778-39-3 C8H14Br2O2
    4-bromo-2-(2-bromo-ethyl)-butyric acid ethyl ester
    —— 4-[2-(2-Chlorophenyl)ethyl]-5-methoxy-1,3-dioxolan-2-one 1160858-17-2 C12H13ClO4
    4-[2-(2-Chlorophenyl)ethyl]-5-methoxy-1,3-dioxolan-2-one
    —— 4-((3aS,4R,6S,6aS)-6-methoxy-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-1-(naphthalen-1-yl)-1H-1,2,3-triazole 1189781-08-5 C20H21N3O4
    4-((3aS,4R,6S,6aS)-6-methoxy-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-1-(naphthalen-1-yl)-1H-1,2,3-triazole
    —— 4-(5-chloro-2-((1-(3-fluoropyridin-4-yl)-2-oxo-1H-imidazo[4,5-c]pyridin-3(2H)-yl)methyl)-1H-indol-1-yl)butanenitrile 1513681-07-6 C24H18ClFN6O
    4-(5-chloro-2-((1-(3-fluoropyridin-4-yl)-2-oxo-1H-imidazo[4,5-c]pyridin-3(2H)-yl)methyl)-1H-indol-1-yl)butanenitrile
    —— 4-(methoxy-d3)-2,6-dimethyl-1,2,3,4-tetrahydroquinoline 97531-33-4 C12H17NO
    4-(methoxy-d3)-2,6-dimethyl-1,2,3,4-tetrahydroquinoline
    —— 4-chloro-5-fluoro-N-phenylpyrimidin-2-amine 1047405-74-2 C10H7ClFN3
    4-chloro-5-fluoro-N-phenylpyrimidin-2-amine
    —— 4-methyl-3-phenyl-3H-thiazol-2-one bis-(2-chloro-ethyl)-hydrazone 15995-36-5 C14H17Cl2N3S
    4-methyl-3-phenyl-3H-thiazol-2-one bis-(2-chloro-ethyl)-hydrazone
    —— 4,4-dimethyl-6'-phenyl-1'-{(1R,3R,4S)-1,7,7-trimethyl-2-oxobicyclo[2.2.1]heptan-3-yl}-2',4'-dihydro-1'H-spiro[cyclohexane-1,3'-quinoline]-2,6-dione 1392477-50-7 C32H37NO3
    4,4-dimethyl-6'-phenyl-1'-{(1R,3R,4S)-1,7,7-trimethyl-2-oxobicyclo[2.2.1]heptan-3-yl}-2',4'-dihydro-1'H-spiro[cyclohexane-1,3'-quinoline]-2,6-dione
    —— 4,5-dimethyl-pyrrole-3-carboxylic acid-anhydride 860759-70-2 C14H16N2O3
    4,5-dimethyl-pyrrole-3-carboxylic acid-anhydride
    —— 4-((<i>Z</i>)-2-bromo-2-carboxy-vinyl)-tri-<i>N</i>-methyl-anilinium betaine 60604-41-3 C12H14BrNO2
    4-((<i>Z</i>)-2-bromo-2-carboxy-vinyl)-tri-<i>N</i>-methyl-anilinium betaine
    —— 4-(2-(4-chloro-3-nitrophenoxy)ethyl)piperidine 1381954-61-5 C13H17ClN2O3
    4-(2-(4-chloro-3-nitrophenoxy)ethyl)piperidine
    —— 4-{3-[1-(5-chloro-pyrimidin-2-yl)piperidin-4-yl]propoxy}-2,6-dimethyl-N-(2-pyrrolidin-1-ylethyl)-benzamide 1204335-19-2 C27H38ClN5O2
    4-{3-[1-(5-chloro-pyrimidin-2-yl)piperidin-4-yl]propoxy}-2,6-dimethyl-N-(2-pyrrolidin-1-ylethyl)-benzamide
    —— 4,7-bis(tert-butoxycarbonylmethyl)-1-(4-nitro-benzyl)-1,4,7-triazacyclononane 1374994-87-2 C25H40N4O6
    4,7-bis(tert-butoxycarbonylmethyl)-1-(4-nitro-benzyl)-1,4,7-triazacyclononane
    —— 4-(Sulfanylmethylidene)-1,3-oxazol-5(4H)-one 112463-59-9 C4H3NO2S
    4-(Sulfanylmethylidene)-1,3-oxazol-5(4H)-one
    —— 4-(2-chloroethoxy)butan-2-one 1256092-58-6 C6H11ClO2
    4-(2-chloroethoxy)butan-2-one
    —— 4-methyl-N-(1-{[1-(methylethyl)-5-(methyloxy)-1H-indol-3-yl]methyl}-4-piperidinyl)-3,5-bis(methyloxy)benzamide 1206885-37-1 C28H37N3O4
    4-methyl-N-(1-{[1-(methylethyl)-5-(methyloxy)-1H-indol-3-yl]methyl}-4-piperidinyl)-3,5-bis(methyloxy)benzamide
    —— 4-{2-[2-(2-{2-[4-(4-trans-pentylcyclohexyl)phenoxy]ethoxy}ethoxy)ethoxy]ethoxy}benzoic acid 1177502-59-8 C32H46O7
    4-{2-[2-(2-{2-[4-(4-trans-pentylcyclohexyl)phenoxy]ethoxy}ethoxy)ethoxy]ethoxy}benzoic acid
    —— 4-amino-2-(1H-imidazol-1-yl)-9-methoxybenzo[c][2,7]naphthyridin-8-ol 1055963-53-5 C16H13N5O2
    4-amino-2-(1H-imidazol-1-yl)-9-methoxybenzo[c][2,7]naphthyridin-8-ol
    —— (4-fluoro-phenacyl)-bis-(2-hydroxy-ethyl)-sulfonium ; chloride 7588-65-0 C12H16FO3S*Cl
    (4-fluoro-phenacyl)-bis-(2-hydroxy-ethyl)-sulfonium ; chloride
    —— (4R)-5t-[(R)-azido-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-methyl]-4r-diethoxymethyl-oxazolidin-2-one 53372-82-0 C14H24N4O6
    (4R)-5t-[(R)-azido-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-methyl]-4r-diethoxymethyl-oxazolidin-2-one
    —— 4-({1-[2-(4-cyanophenyl)ethyl]-4-hydroxypiperidin-4-ylmethyl}-methylamino)benzoic acid monohydrochloride 477721-31-6 C23H27N3O3*ClH
    4-({1-[2-(4-cyanophenyl)ethyl]-4-hydroxypiperidin-4-ylmethyl}-methylamino)benzoic acid monohydrochloride
    —— 4,7-dimethoxy--5-<2-(methylsulphinyl)-2-(methylthio)ethenyl>-1,3-benzodioxole 113326-46-8 C13H16O5S2
    4,7-dimethoxy--5-<2-(methylsulphinyl)-2-(methylthio)ethenyl>-1,3-benzodioxole
    —— 4-(4-Chlorobutyl)-1,3-thiazol-2-aminehydrochloride 2503203-89-0 C7H12Cl2N2S
    4-(4-Chlorobutyl)-1,3-thiazol-2-aminehydrochloride
    —— 4-(2-(3,4-dihydro-2(1H)-isoquinolinyl)-4-methyl-7-oxopyrido[2,3-d]pyrimidin-8(7H)-yl)-N-[3-(dimethylamino-N-oxido)propyl]benzamide 583874-26-4 C29H32N6O3
    4-(2-(3,4-dihydro-2(1H)-isoquinolinyl)-4-methyl-7-oxopyrido[2,3-d]pyrimidin-8(7H)-yl)-N-[3-(dimethylamino-N-oxido)propyl]benzamide
    —— 4-hydroxy-3-(2-hydroxy-2-methylpropyl)-1-methyl-2(1H)-quinolinone 93574-06-2 C14H17NO3
    4-hydroxy-3-(2-hydroxy-2-methylpropyl)-1-methyl-2(1H)-quinolinone
    —— 4-Bromo-3-[2-(methoxymethoxy)phenyl]-2-[(4-methoxyphenyl)methyl]isoquinolin-1-one 1272658-55-5 C25H22BrNO4
    4-Bromo-3-[2-(methoxymethoxy)phenyl]-2-[(4-methoxyphenyl)methyl]isoquinolin-1-one
    —— (4S,5R)-4-[1-(2-methoxyphenyl)(hydroxy)methyl]-2,2-dimethyl-5-vinyl-1,3-dioxolane 1224588-09-3 C15H20O4
    (4S,5R)-4-[1-(2-methoxyphenyl)(hydroxy)methyl]-2,2-dimethyl-5-vinyl-1,3-dioxolane
    —— 4-cyclohexyl-2-(2-cyclohexyl-ethyl)-butyric acid 854586-17-7 C18H32O2
    4-cyclohexyl-2-(2-cyclohexyl-ethyl)-butyric acid