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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-Imino-5,5,5-trimethoxypentan-2-one 1391041-92-1 C8H15NO4
    4-Imino-5,5,5-trimethoxypentan-2-one
    —— 4.5-Bis-(4-fluor-benzylmercapto)-2-phenyl-3-oxo-2.3-dihydro-pyridazin 5273-37-0 C24H18F2N2OS2
    4.5-Bis-(4-fluor-benzylmercapto)-2-phenyl-3-oxo-2.3-dihydro-pyridazin
    —— (4S,5R)-2,2-Dimethyl-5-trityloxymethyl-5-((E)-undec-1-enyl)-[1,3]dioxolane-4-carbaldehyde 546112-95-2 C37H46O4
    (4S,5R)-2,2-Dimethyl-5-trityloxymethyl-5-((E)-undec-1-enyl)-[1,3]dioxolane-4-carbaldehyde
    —— (4-fluoro-phenyl)-(3H-imidazol-4-ylmethyl)-isopropyl-amine 1020815-04-6 C13H16FN3
    (4-fluoro-phenyl)-(3H-imidazol-4-ylmethyl)-isopropyl-amine
    —— 4aβ,10bβ-Dihydro-narciclasin 1194273-32-9 C14H15NO7
    4aβ,10bβ-Dihydro-narciclasin
    —— (4S,5S)-2-(4-Methoxy-phenyl)-5-methyl-4-((S)-1-methyl-but-3-enyl)-[1,3]dioxane 461044-29-1 C17H24O3
    (4S,5S)-2-(4-Methoxy-phenyl)-5-methyl-4-((S)-1-methyl-but-3-enyl)-[1,3]dioxane
    —— 4-[(1<i>H</i>-benzoimidazol-2-ylsulfanyl)-acetyl]-morpholine 30065-31-7 C13H15N3O2S
    4-[(1<i>H</i>-benzoimidazol-2-ylsulfanyl)-acetyl]-morpholine
    —— 4-(p-tolyloxy)-2-(4-(p-tolyloxy)thiophen-2-yl)thiophene 866824-50-2 C22H18O2S2
    4-(p-tolyloxy)-2-(4-(p-tolyloxy)thiophen-2-yl)thiophene
    —— 4-Chlor-1-cyclopropyl-buten-(1) 89893-12-9 C7H11Cl
    4-Chlor-1-cyclopropyl-buten-(1)
    —— 4-(3-Oxo-2,3-dihydro-benzo[4,5]imidazo[2,1-b]thiazol-2-ylazo)-benzoic acid ethyl ester 107106-85-4 C18H14N4O3S
    4-(3-Oxo-2,3-dihydro-benzo[4,5]imidazo[2,1-b]thiazol-2-ylazo)-benzoic acid ethyl ester
    —— 4.5-Bis-(4-brom-benzylmercapto)-2-phenyl-3-oxo-2.3-dihydro-pyridazin 5273-33-6 C24H18Br2N2OS2
    4.5-Bis-(4-brom-benzylmercapto)-2-phenyl-3-oxo-2.3-dihydro-pyridazin
    —— 4-(1-Benzothiophen-3-yl)-4-hydroxybutanoic acid 1039819-29-8 C12H12O3S
    4-(1-Benzothiophen-3-yl)-4-hydroxybutanoic acid
    —— (4Z)-4-[[4-[[4-[(6,8-disulfonaphthalen-2-yl)diazenyl]-3-methylphenyl]diazenyl]-3-methylphenyl]hydrazinylidene]-3-oxonaphthalene-2,7-disulfonic acid 6949-15-1 C34H26N6O13S4
    (4Z)-4-[[4-[[4-[(6,8-disulfonaphthalen-2-yl)diazenyl]-3-methylphenyl]diazenyl]-3-methylphenyl]hydrazinylidene]-3-oxonaphthalene-2,7-disulfonic acid
    —— 4-biphenyl-4-yl-3-methyl-4-oxo-crotonic acid 101451-54-1 C17H14O3
    4-biphenyl-4-yl-3-methyl-4-oxo-crotonic acid
    —— 4,5-Bis-(benzylthio)-2-phenyl-3-pyridazinon 5273-32-5 C24H20N2OS2
    4,5-Bis-(benzylthio)-2-phenyl-3-pyridazinon
    —— (4R,9aR)-7-[2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-6-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxymethyl]-4-methyl-3,4,9,9a-tetrahydro-1H-2,4a,5-triaza-fluorene-2-carboxylic acid tert-butyl ester 914476-76-9 C33H61N3O5Si2
    (4R,9aR)-7-[2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-6-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxymethyl]-4-methyl-3,4,9,9a-tetrahydro-1H-2,4a,5-triaza-fluorene-2-carboxylic acid tert-butyl ester
    —— 4-cyano-N-{(S)-[1-(1-cyano-cyclopropyl)-1H-[1,2,3]triazol-4-yl]-cyclohexyl-methyl}-benzamide 1333426-53-1 C21H22N6O
    4-cyano-N-{(S)-[1-(1-cyano-cyclopropyl)-1H-[1,2,3]triazol-4-yl]-cyclohexyl-methyl}-benzamide
    —— 4-[1,3-bis[(3,4-dimethoxyphenyl)methyl]-1,3-diazinan-2-yl]-N,N-bis(2-chloroethyl)-3-methylaniline 5740-58-9 C33H43Cl2N3O4
    4-[1,3-bis[(3,4-dimethoxyphenyl)methyl]-1,3-diazinan-2-yl]-N,N-bis(2-chloroethyl)-3-methylaniline
    —— 4-(5-cyclopentyl-2-methoxy-phenyl)-4-oxo-butyric acid 874487-28-2 C16H20O4
    4-(5-cyclopentyl-2-methoxy-phenyl)-4-oxo-butyric acid
    —— 4-hydrazino-6-<(phenylmethyl)thio>-2,5-pyrimidinediamine 31736-47-7 C11H14N6S
    4-hydrazino-6-<(phenylmethyl)thio>-2,5-pyrimidinediamine
    —— 4-biphenyl-4-yl-3-methyl-4-oxo-butyric acid 111259-36-0 C17H16O3
    4-biphenyl-4-yl-3-methyl-4-oxo-butyric acid
    —— 4-N-(2-methoxyphenyl)amino-5-(4-ethoxyphenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine 868274-47-9 C28H30N4O5
    4-N-(2-methoxyphenyl)amino-5-(4-ethoxyphenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine
    —— 4,8-Diamino-3,7-diazatricyclo<4.2.2.2<sup>2,5</sup>>dodecadien-(3,7) 91717-18-9 C10H16N4
    4,8-Diamino-3,7-diazatricyclo<4.2.2.2<sup>2,5</sup>>dodecadien-(3,7)
    —— (4R,9aR)-6-[2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-4-methyl-3,4,9,9a-tetrahydro-1H-2,4a,5-triaza-fluorene-2-carboxylic acid tert-butyl ester 914476-78-1 C24H41N3O4Si
    (4R,9aR)-6-[2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-4-methyl-3,4,9,9a-tetrahydro-1H-2,4a,5-triaza-fluorene-2-carboxylic acid tert-butyl ester
    —— 4,4'-(Furan-2,5-diyl)di(but-3-en-2-one) 55001-17-7 C12H12O3
    4,4'-(Furan-2,5-diyl)di(but-3-en-2-one)
    —— 4-((2-chlorophenyl)thio)-5-hydroxy-1,6-dihydro-[1,1'-biphenyl]-3(2H)-one 1639046-45-9 C18H15ClO2S
    4-((2-chlorophenyl)thio)-5-hydroxy-1,6-dihydro-[1,1'-biphenyl]-3(2H)-one
    —— 4-(4-(2-methyl-1,3-dioxolan-2-yl)phenyl)but-3-yn-1-ol 1401005-91-1 C14H16O3
    4-(4-(2-methyl-1,3-dioxolan-2-yl)phenyl)but-3-yn-1-ol
    —— 4-chloromethyl-5-methyl-2-{4-(3-dodecyloxypropyl)carbamoyl-2-nitrophenyl}-4-isoxazolin-3-one 118938-06-0 C27H40ClN3O6
    4-chloromethyl-5-methyl-2-{4-(3-dodecyloxypropyl)carbamoyl-2-nitrophenyl}-4-isoxazolin-3-one
    —— 4-N-phenylamino-5-phenyl-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine 186456-97-3 C25H24N4O3
    4-N-phenylamino-5-phenyl-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine
    —— (4S,5R,6S)-4-allyl-6-((R)-1-(benzyloxy)propan-2-yl)-2,2,5-trimethyl-1,3-dioxane 1415654-80-6 C20H30O3
    (4S,5R,6S)-4-allyl-6-((R)-1-(benzyloxy)propan-2-yl)-2,2,5-trimethyl-1,3-dioxane
    —— 4-[(2-fluoro-4-methylphenyl)amino]-7-[4-(2-hydroxyethyl)piperazin-1-yl]cinnoline-3-carbonitrile 1194373-96-0 C22H23FN6O
    4-[(2-fluoro-4-methylphenyl)amino]-7-[4-(2-hydroxyethyl)piperazin-1-yl]cinnoline-3-carbonitrile
    —— 4-N-(4-cyanophenyl)amino-5-(4-chlorophenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine 868274-45-7 C26H22ClN5O3
    4-N-(4-cyanophenyl)amino-5-(4-chlorophenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine
    —— (4R,5S)-[5-(benzylaminomethyl)-2,2-dimethyl[1,3]dioxolan-4-yl]methanol 603959-03-1 C14H21NO3
    (4R,5S)-[5-(benzylaminomethyl)-2,2-dimethyl[1,3]dioxolan-4-yl]methanol
    —— 4-[(2-fluoro-4-methylphenyl)amino]-7-piperazin-1-ylcinnoline-3-carbonitrile 1194373-89-1 C20H19FN6
    4-[(2-fluoro-4-methylphenyl)amino]-7-piperazin-1-ylcinnoline-3-carbonitrile
    —— (+/-)-4-[3-{[(1,1-dimethylethyl)dimethylsilyl]oxy}propyl]-2-cyclohexen-1-one 912959-36-5 C15H28O2Si
    (+/-)-4-[3-{[(1,1-dimethylethyl)dimethylsilyl]oxy}propyl]-2-cyclohexen-1-one
    —— 4,4-dimethyl-3,4-dihydro-2-hydroxy-2H-1-benzopyran 92617-80-6 C11H14O2
    4,4-dimethyl-3,4-dihydro-2-hydroxy-2H-1-benzopyran
    —— 4-(5-bromofuran-2-yl)-2-methoxypyridine 1621525-60-7 C10H8BrNO2
    4-(5-bromofuran-2-yl)-2-methoxypyridine
    —— [4,5-Diacetyloxy-6-(acetyloxymethyl)-2-propan-2-yloxyoxan-3-yl]mercury(1+);phenylmethanethiolate —— C22H30HgO8S
    [4,5-Diacetyloxy-6-(acetyloxymethyl)-2-propan-2-yloxyoxan-3-yl]mercury(1+);phenylmethanethiolate
    —— (4R,5R)-5-phenyl-4-(3-(phenylethynyl)phenyl)oxazolidin-2-one 1375750-18-7 C23H17NO2
    (4R,5R)-5-phenyl-4-(3-(phenylethynyl)phenyl)oxazolidin-2-one
    —— 4-(2-chloro-4-methoxyphenyl)pyridin-2(1H)-one 1613401-80-1 C12H10ClNO2
    4-(2-chloro-4-methoxyphenyl)pyridin-2(1H)-one
    —— 4-[3-(tert-Butyl-dimethyl-silanyloxy)-propyl]-4-methyl-3-vinyl-cyclohex-2-enone 263545-54-6 C18H32O2Si
    4-[3-(tert-Butyl-dimethyl-silanyloxy)-propyl]-4-methyl-3-vinyl-cyclohex-2-enone
    —— 4-N-(3,4-ethylenedioxyphenyl)amino-5-(2-methylphenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine 868274-46-8 C28H28N4O5
    4-N-(3,4-ethylenedioxyphenyl)amino-5-(2-methylphenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine
    —— 4-amino-N-[4-[[4-[[4-[(6,8-disulfonaphthalen-2-yl)diazenyl]-3-methylphenyl]diazenyl]-3-methylphenyl]diazenyl]-3-methylphenyl]benzenecarboximidic acid 71033-06-2 C38H32N8O7S2
    4-amino-N-[4-[[4-[[4-[(6,8-disulfonaphthalen-2-yl)diazenyl]-3-methylphenyl]diazenyl]-3-methylphenyl]diazenyl]-3-methylphenyl]benzenecarboximidic acid
    —— 4-(2-hydroxyphenyl)-4-methylpent-2-yne 92617-93-1 C12H14O
    4-(2-hydroxyphenyl)-4-methylpent-2-yne
    —— 4-N-(4-bromophenyl)amino-5-phenyl-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine 868274-26-4 C25H23BrN4O3
    4-N-(4-bromophenyl)amino-5-phenyl-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine
    —— (4S,5R)-5-phenyl-4-(3-(phenylethynyl)phenyl)oxazolidin-2-one 1375750-20-1 C23H17NO2
    (4S,5R)-5-phenyl-4-(3-(phenylethynyl)phenyl)oxazolidin-2-one
    —— 4-N-(4-cyanophenyl)amino-5-(4-ethoxyphenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine 868274-44-6 C28H27N5O4
    4-N-(4-cyanophenyl)amino-5-(4-ethoxyphenyl)-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine
    —— 4-Bromo-1-(tert-butyl-dimethyl-silanyloxy)-pent-4-en-2-ol 688316-51-0 C11H23BrO2Si
    4-Bromo-1-(tert-butyl-dimethyl-silanyloxy)-pent-4-en-2-ol
    —— 4-[(4-chlorobenzyl)(cyclohexyl)amino]-6-(4-morpholinyl)-1,3,5-triazine-2-carbonitrile 1443830-70-3 C21H25ClN6O
    4-[(4-chlorobenzyl)(cyclohexyl)amino]-6-(4-morpholinyl)-1,3,5-triazine-2-carbonitrile
    —— (4R,5S)-4-(benzyloxymethyl)-2,2-dimethyl-5-(2-methylprop-1-enyl)-1,3-dioxolane 790235-97-1 C17H24O3
    (4R,5S)-4-(benzyloxymethyl)-2,2-dimethyl-5-(2-methylprop-1-enyl)-1,3-dioxolane