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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-methoxy-benzaldehyde-(nitroso-phenyl-hydrazone) 29586-03-6 C14H13N3O2
    4-methoxy-benzaldehyde-(nitroso-phenyl-hydrazone)
    —— 4-(2-carboxyethyl)-4-[[(2S,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[3-(9H-fluoren-9-ylmethoxycarbonylamino)propanoylamino]oxane-2-carbonyl]amino]heptanedioic acid 724766-20-5 C40H47N3O17
    4-(2-carboxyethyl)-4-[[(2S,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[3-(9H-fluoren-9-ylmethoxycarbonylamino)propanoylamino]oxane-2-carbonyl]amino]heptanedioic acid
    —— 4-ethoxy-5-<N-formyl-N-(2-formyloxyethyl)amino>-2-methyl-3(2H)-pyridazinone 116614-74-5 C11H15N3O5
    4-ethoxy-5-<N-formyl-N-(2-formyloxyethyl)amino>-2-methyl-3(2H)-pyridazinone
    —— 4-[Bromo-(2-chloro-phenyl)-phenyl-methyl]-benzoic acid pentafluorophenyl ester 172976-57-7 C26H13BrClF5O2
    4-[Bromo-(2-chloro-phenyl)-phenyl-methyl]-benzoic acid pentafluorophenyl ester
    —— 4-(3,5-dichlorophenyl)-5-(3-hydroxyphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione 1426945-65-4 C14H9Cl2N3OS
    4-(3,5-dichlorophenyl)-5-(3-hydroxyphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione
    —— 4-(2-(4-methoxycarbazol-9-yl)ethoxy)benzaldehyde 859831-63-3 C22H19NO3
    4-(2-(4-methoxycarbazol-9-yl)ethoxy)benzaldehyde
    —— 4-(3,5-dichlorophenyl)-5-(3-chlorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione 1426945-60-9 C14H8Cl3N3S
    4-(3,5-dichlorophenyl)-5-(3-chlorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione
    —— 4-N-benzoyl-1-[3-C-ethynyl-2,3-O-(4-nitrobenzylidene)-5-O-benzoyl-β-D-ribo-pentofuranosyl]cytosine 616239-78-2 C32H24N4O9
    4-N-benzoyl-1-[3-C-ethynyl-2,3-O-(4-nitrobenzylidene)-5-O-benzoyl-β-D-ribo-pentofuranosyl]cytosine
    —— 4-amino-benzoic acid tropane-3exo-yl ester 109816-31-1 C15H20N2O2
    4-amino-benzoic acid tropane-3exo-yl ester
    —— 4-(4-benzyloxyphenoxy)-6-(tert-butyldiphenylsilyloxy)-2-methylhexan-3-one 444068-97-7 C36H42O4Si
    4-(4-benzyloxyphenoxy)-6-(tert-butyldiphenylsilyloxy)-2-methylhexan-3-one
    —— (4-chlorophenethyl)(trifluoromethyl)sulfane 1624333-23-8 C9H8ClF3S
    (4-chlorophenethyl)(trifluoromethyl)sulfane
    —— 4-(2,3-epoxypropoxy)-1-iodocarbazole 85135-33-7 C15H12INO2
    4-(2,3-epoxypropoxy)-1-iodocarbazole
    —— 4-(2,3-Dihydroxypropoxy)-2-methylpyridazin-3(2H)-one 98700-68-6 C8H12N2O4
    4-(2,3-Dihydroxypropoxy)-2-methylpyridazin-3(2H)-one
    —— 4-methoxyphenyl (4-O-acetyl-2,6-di-O-benzyl-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranoside 1064679-21-5 C56H60O13
    4-methoxyphenyl (4-O-acetyl-2,6-di-O-benzyl-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranoside
    —— 4-[(2-hydroxy-ethoxy)-acetyl]-morpholine 68448-75-9 C8H15NO4
    4-[(2-hydroxy-ethoxy)-acetyl]-morpholine
    —— 4-O-(3-O-tert-butyldimethylsilyl-2-deoxy-4,6-O-isopropylidene-2-methoxyimino-α-D-arabino-hexopyranosyl)-2,3;5,6-di-O-isopropylidene-aldehydo-D-glucose dimethyl acetal 131070-15-0 C30H55NO12Si
    4-O-(3-O-tert-butyldimethylsilyl-2-deoxy-4,6-O-isopropylidene-2-methoxyimino-α-D-arabino-hexopyranosyl)-2,3;5,6-di-O-isopropylidene-aldehydo-D-glucose dimethyl acetal
    —— (4-Dimethylamino-phenyl)-carbamic acid 5-chloro-2-(2,4-dichloro-phenoxy)-phenyl ester 28395-86-0 C21H17Cl3N2O3
    (4-Dimethylamino-phenyl)-carbamic acid 5-chloro-2-(2,4-dichloro-phenoxy)-phenyl ester
    —— 4-(6-Fluoropyridin-3-yl)cyclohexan-1-one 1231258-30-2 C11H12FNO
    4-(6-Fluoropyridin-3-yl)cyclohexan-1-one
    —— 4-hexyl-5-iodo-2-methyl-1-pentene 259209-98-8 C12H23I
    4-hexyl-5-iodo-2-methyl-1-pentene
    —— 4-[2-[2-[2-(2-bromo-ethoxy)-ethoxy]-ethoxy]-ethoxy]-phenyl benzyl ether 744251-98-7 C21H27BrO5
    4-[2-[2-[2-(2-bromo-ethoxy)-ethoxy]-ethoxy]-ethoxy]-phenyl benzyl ether
    —— 4-bromophenyl(2,4,6-tri-tert-butylphenyl)phosphine 473882-90-5 C24H34BrP
    4-bromophenyl(2,4,6-tri-tert-butylphenyl)phosphine
    —— (4-Hydroxyphenyl)acetaldehyd-dimethylhydrazon 74321-28-1 C10H14N2O
    (4-Hydroxyphenyl)acetaldehyd-dimethylhydrazon
    —— 4,4'-<oxybis(ethyleneoxy)>diphenol dibenzyl ether 105646-17-1 C30H30O5
    4,4'-<oxybis(ethyleneoxy)>diphenol dibenzyl ether
    —— 4-(tert-butoxycarbonyl)-3,5-diphenyl-4H-[1,4]oxazine 943818-42-6 C21H21NO3
    4-(tert-butoxycarbonyl)-3,5-diphenyl-4H-[1,4]oxazine
    —— 4-amino-1-((2R,4R,5R)-3,3-difluoro-4-(trimethylsilyloxy)-5-((trimethylsilyloxy)methyl)tetrahydrofuran-2-yl)pyrimidine-2(1H)-one 1155265-38-5 C15H27F2N3O4Si2
    4-amino-1-((2R,4R,5R)-3,3-difluoro-4-(trimethylsilyloxy)-5-((trimethylsilyloxy)methyl)tetrahydrofuran-2-yl)pyrimidine-2(1H)-one
    —— (4,5-dichloro-2-nitro-phenyl)-trifluoromethyl sulfoxide 393-86-2 C7H2Cl2F3NO3S
    (4,5-dichloro-2-nitro-phenyl)-trifluoromethyl sulfoxide
    —— 4-(4-Chloro-phenyl)-4-(methanesulfonylamino-methyl)-piperidine-1-carboxylic acid benzyl ester 906369-60-6 C21H25ClN2O4S
    4-(4-Chloro-phenyl)-4-(methanesulfonylamino-methyl)-piperidine-1-carboxylic acid benzyl ester
    —— (4-{[(2-chloro-5-{[(3-chlorophenyl)methyl]oxy}phenyl)carbonyl]amino}-3,5-difluorophenyl)ethaneic acid 1034025-76-7 C22H15Cl2F2NO4
    (4-{[(2-chloro-5-{[(3-chlorophenyl)methyl]oxy}phenyl)carbonyl]amino}-3,5-difluorophenyl)ethaneic acid
    —— (4,6',6''-trimethoxy-4'''-methyl-[1,1':3',1'':3'',1'''-quaterphenyl]-3-yl)boronic acid 950511-07-6 C28H27BO5
    (4,6',6''-trimethoxy-4'''-methyl-[1,1':3',1'':3'',1'''-quaterphenyl]-3-yl)boronic acid
    —— 4-methoxyphenyl (2,3-di-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl)-(1->2)-(3,4-di-O-benzyl-α-L-rhamnopyranosyl)-(1->3)-(2,4,6-tri-O-benzyl-β-D-galactopyranosyl)-(1->2)-3,4-di-O-benzyl-α-L-rhamnopyranoside 1192360-97-6 C91H100O21
    4-methoxyphenyl (2,3-di-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl)-(1->2)-(3,4-di-O-benzyl-α-L-rhamnopyranosyl)-(1->3)-(2,4,6-tri-O-benzyl-β-D-galactopyranosyl)-(1->2)-3,4-di-O-benzyl-α-L-rhamnopyranoside
    —— (4S,5S)-4-(2-(13)C labeled-2,3-dihydroxypropyl)-5-pentyl-oxazolidin-2-one 1334497-10-7 C11H21NO4
    (4S,5S)-4-(2-(13)C labeled-2,3-dihydroxypropyl)-5-pentyl-oxazolidin-2-one
    —— (4bR,8aS)-2-isopropyl-4b-(methoxycarbonyl)-8,8-dimethyl-4b,5,6,7,8,8a,9,10-octahydrophenanthrene-3,4-diyl dibutyrate 1025444-77-2 C29H42O6
    (4bR,8aS)-2-isopropyl-4b-(methoxycarbonyl)-8,8-dimethyl-4b,5,6,7,8,8a,9,10-octahydrophenanthrene-3,4-diyl dibutyrate
    —— 4-<4-Benzoyloxy-phenoxy>-3,5-diiod-benzylmalonsaeure-diethylester 2621-56-9 C27H24I2O7
    4-<4-Benzoyloxy-phenoxy>-3,5-diiod-benzylmalonsaeure-diethylester
    —— [4-(2-{2-[4-(2-Benzenesulfonylamino-ethyl)-phenoxy]-acetylamino}-ethyl)-phenoxy]-acetic acid ethyl ester 72131-67-0 C28H32N2O7S
    [4-(2-{2-[4-(2-Benzenesulfonylamino-ethyl)-phenoxy]-acetylamino}-ethyl)-phenoxy]-acetic acid ethyl ester
    —— 4-chloro-4-deoxy-α-D-galactopyranosyl 4-amino-1,6-dichloro-1,4,6-trideoxy-β-D-fructofuranoside 129728-18-3 C12H20Cl3NO7
    4-chloro-4-deoxy-α-D-galactopyranosyl 4-amino-1,6-dichloro-1,4,6-trideoxy-β-D-fructofuranoside
    —— (4R,4aS,7aR,12bS,E)-6-((dimethylamino)methylene)-4a-hydroxy-9-methoxy-3-(2-methylallyl)-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one 384820-65-9 C24H30N2O4
    (4R,4aS,7aR,12bS,E)-6-((dimethylamino)methylene)-4a-hydroxy-9-methoxy-3-(2-methylallyl)-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one
    —— 4α-acetoxy-2α-benzoyloxy-5β,20-epoxy-10β-methoxy-9-oxo-1β,13α,7β-trihydroxy-11-taxene 183133-97-3 C30H38O10
    4α-acetoxy-2α-benzoyloxy-5β,20-epoxy-10β-methoxy-9-oxo-1β,13α,7β-trihydroxy-11-taxene
    —— (4R)-N-(3-(5-chloro-2-(2,4-dichlorophenoxy)phenoxy)propyl)-2-(4-methoxyphenyl)-5,5-dimethyl-1,3-dioxane-4-carboxamide 1610840-02-2 C29H30Cl3NO6
    (4R)-N-(3-(5-chloro-2-(2,4-dichlorophenoxy)phenoxy)propyl)-2-(4-methoxyphenyl)-5,5-dimethyl-1,3-dioxane-4-carboxamide
    —— (4Ξ,6'R?)-4-methoxy-β,ε-carotene 122704-30-7 C41H58O
    (4Ξ,6'R?)-4-methoxy-β,ε-carotene
    —— 4,6-dichloro-N-prop-2-ynylpyridin-2-amine 1570114-50-9 C8H6Cl2N2
    4,6-dichloro-N-prop-2-ynylpyridin-2-amine
    —— 4-[(3-chloro-2-fluorophenyl)amino]-7-methoxy-6-(1-methylpiperidin-4-yl)quinoline-3-carboxamide 1024954-11-7 C23H24ClFN4O2
    4-[(3-chloro-2-fluorophenyl)amino]-7-methoxy-6-(1-methylpiperidin-4-yl)quinoline-3-carboxamide
    —— 4,4'-di(2-hydroxyethoxy)-1,1'-tellurobisbenzene 185117-96-8 C16H18O4Te
    4,4'-di(2-hydroxyethoxy)-1,1'-tellurobisbenzene
    —— 4-(4,4-Dimethyl-2-methylamino-6-oxo-cyclohex-1-enyl)-4-oxo-butyric acid 40702-57-6 C13H19NO4
    4-(4,4-Dimethyl-2-methylamino-6-oxo-cyclohex-1-enyl)-4-oxo-butyric acid
    —— 4-phenyl-1-[N-(4-aminobenzoyl)indoline-5-sulfonyl]-2-imidazolone 203860-52-0 C24H20N4O4S
    4-phenyl-1-[N-(4-aminobenzoyl)indoline-5-sulfonyl]-2-imidazolone
    —— 4-(4-chloro-2-methyl-phenoxy)-valeric acid-(2-butoxy-ethyl ester) 108300-01-2 C18H27ClO4
    4-(4-chloro-2-methyl-phenoxy)-valeric acid-(2-butoxy-ethyl ester)
    —— 4-methyl-3-(9H-pyrimido[4,5-b]indol-7-yl)aniline 1036376-88-1 C17H14N4
    4-methyl-3-(9H-pyrimido[4,5-b]indol-7-yl)aniline
    —— (4R,5S,5'S)-1,5-Dimethyl-3-(2'-phenyl-4'-oxazolylcarbonyl)-4-phenylimidazolidin-2-one 252580-16-8 C21H21N3O3
    (4R,5S,5'S)-1,5-Dimethyl-3-(2'-phenyl-4'-oxazolylcarbonyl)-4-phenylimidazolidin-2-one
    —— 4-(2,6-Bis-benzyloxy-5-nitro-pyrimidin-4-ylamino)-2-(6-bromo-2-oxo-2,3-dihydro-1H-indol-3-yl)-3-oxo-butyric acid ethyl ester 99277-55-1 C32H28BrN5O8
    4-(2,6-Bis-benzyloxy-5-nitro-pyrimidin-4-ylamino)-2-(6-bromo-2-oxo-2,3-dihydro-1H-indol-3-yl)-3-oxo-butyric acid ethyl ester
    —— (4S,5S,6R)-4-benzyl-5-methoxy-2-phenyl-6-vinyl-5,6-dihydro-4H-1,3-oxazine 1221967-11-8 C20H21NO2
    (4S,5S,6R)-4-benzyl-5-methoxy-2-phenyl-6-vinyl-5,6-dihydro-4H-1,3-oxazine
    —— (4S,5S)-2,2-dimethyl-N(3),5-di-tert-butoxycarbonyl-4-tri-iso-propylsilyloxymethyl-oxazolidine 1033130-08-3 C25H49NO6Si
    (4S,5S)-2,2-dimethyl-N(3),5-di-tert-butoxycarbonyl-4-tri-iso-propylsilyloxymethyl-oxazolidine