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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4,16α-Dimethyl-progesteron 97831-05-5 C23H34O2
    4,16α-Dimethyl-progesteron
    —— 4-<1-Hydroxyimino-ethyl>-1,2-dimethyl-naphtho<2.1-b>thiophen 97498-57-2 C16H15NOS
    4-<1-Hydroxyimino-ethyl>-1,2-dimethyl-naphtho<2.1-b>thiophen
    —— 4-[[(1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-acetyloxy-5a,5b,8,8,11a-pentamethyl-1-prop-1-en-2-yl-1,2,3,4,5,6,7,7a,9,10,11,11b,12,13,13a,13b-hexadecahydrocyclopenta[a]chrysene-3a-carbonyl]amino]butanoic acid 150841-44-4 C36H57NO5
    4-[[(1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-acetyloxy-5a,5b,8,8,11a-pentamethyl-1-prop-1-en-2-yl-1,2,3,4,5,6,7,7a,9,10,11,11b,12,13,13a,13b-hexadecahydrocyclopenta[a]chrysene-3a-carbonyl]amino]butanoic acid
    —— 4-(4-Ethoxy-phenyl)-3-[(3-nitro-phenyl)-hydrazono]-3H-pyran-2,6-dione 76747-09-6 C19H15N3O6
    4-(4-Ethoxy-phenyl)-3-[(3-nitro-phenyl)-hydrazono]-3H-pyran-2,6-dione
    —— 4,6-di-(3,4-Dimethylphenyl)-5-benzyl-pyridazin-3(4H)-on 54543-50-9 C27H28N2O
    4,6-di-(3,4-Dimethylphenyl)-5-benzyl-pyridazin-3(4H)-on
    —— 4-(4-(2,3-dihydro-2-oxobenzo[d]oxazol-5-ylamino)-5-methylpyrimidin-2-ylamino)-2-methoxy-6-methylbenzyl alcohol 1357101-61-1 C21H21N5O4
    4-(4-(2,3-dihydro-2-oxobenzo[d]oxazol-5-ylamino)-5-methylpyrimidin-2-ylamino)-2-methoxy-6-methylbenzyl alcohol
    —— 4-Benzyl-2-hexyl-furan 55229-08-8 C17H22O
    4-Benzyl-2-hexyl-furan
    —— 4-pyridin-2-yl-2-pyridin-4-yl-2,3-dihydro-1<i>H</i>-benzo[<i>b</i>][1,4]diazepine 56686-23-8 C19H16N4
    4-pyridin-2-yl-2-pyridin-4-yl-2,3-dihydro-1<i>H</i>-benzo[<i>b</i>][1,4]diazepine
    —— (+/-)-4-(tert-butyldimethylsilyl)oxy-1-pyrroline N-oxide 1393672-53-1 C10H21NO2Si
    (+/-)-4-(tert-butyldimethylsilyl)oxy-1-pyrroline N-oxide
    —— (4R)-4-fIuoro-2-(2-fIuoro-2-methylpropoxy)-7-(2-fluoro-3-pyridinyl)-5,6-dihydrospiro[1,3-oxazine-4,9-xanthen]-2-amine 1335217-39-4 C25H22F3N3O3
    (4R)-4-fIuoro-2-(2-fIuoro-2-methylpropoxy)-7-(2-fluoro-3-pyridinyl)-5,6-dihydrospiro[1,3-oxazine-4,9-xanthen]-2-amine
    —— 4-fluoro-4-(4-pyrimidin-2-yl-phenyl)-piperidine-1-carboxylic acid tert-butyl ester 1093064-90-4 C20H24FN3O2
    4-fluoro-4-(4-pyrimidin-2-yl-phenyl)-piperidine-1-carboxylic acid tert-butyl ester
    —— 4,6-dichloro-2-(methoxymethyl)nicotinonitrile 1589541-05-8 C8H6Cl2N2O
    4,6-dichloro-2-(methoxymethyl)nicotinonitrile
    —— 4-(benzyloxy)-2-methylenebutyl 4-(dimethylamino)benzoate 1613059-55-4 C21H25NO3
    4-(benzyloxy)-2-methylenebutyl 4-(dimethylamino)benzoate
    —— (4R,5R,6S)-6-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4,5-dihydroxy-5,6-dihydro-4H-pyran-2-carboxylic acid methyl ester 129253-52-7 C12H18O7
    (4R,5R,6S)-6-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4,5-dihydroxy-5,6-dihydro-4H-pyran-2-carboxylic acid methyl ester
    —— 4-(5-tert-butyl-1H-1,2,4-triazol-3-yl)pyrimidine 1577253-09-8 C10H13N5
    4-(5-tert-butyl-1H-1,2,4-triazol-3-yl)pyrimidine
    —— 4-[[5'-(4-hydroxyphenoxy)-1,1,1',1'-tetramethyl-3,3'-spirobi[2H-indene]-5-yl]oxy]phenol 126026-44-6 C33H32O4
    4-[[5'-(4-hydroxyphenoxy)-1,1,1',1'-tetramethyl-3,3'-spirobi[2H-indene]-5-yl]oxy]phenol
    —— 4-{[1-[5-(4-Bromo-phenyl)-furan-2-yl]-meth-(Z)-ylidene]-amino}-5-methyl-2,4-dihydro-[1,2,4]triazole-3-thione 139267-89-3 C14H11BrN4OS
    4-{[1-[5-(4-Bromo-phenyl)-furan-2-yl]-meth-(Z)-ylidene]-amino}-5-methyl-2,4-dihydro-[1,2,4]triazole-3-thione
    —— 4-benzoyloxy-2-chloro-1-methanesulfonyl-benzene 100623-19-6 C14H11ClO4S
    4-benzoyloxy-2-chloro-1-methanesulfonyl-benzene
    —— 4-isobutoxy-benzoic acid-(3-diethylamino-2,2-dimethyl-propyl ester) 110746-54-8 C20H33NO3
    4-isobutoxy-benzoic acid-(3-diethylamino-2,2-dimethyl-propyl ester)
    —— 4-[tris(methoxydimethylsilyl)methyl]butylferrocene 1610425-91-6 C24H44FeO3Si3
    4-[tris(methoxydimethylsilyl)methyl]butylferrocene
    —— 4-bromophenoxydimethylsilane 33324-34-4 C8H11BrOSi
    4-bromophenoxydimethylsilane
    —— [(4S)-4-[bis[(2,4-dimethoxyphenyl)methyl]carbamothioylamino]-4-[2-fluoro-5-[(2,2,2-trifluoroacetyl)amino]phenyl]-2-oxopentyl] acetate 1404336-97-5 C34H37F4N3O8S
    [(4S)-4-[bis[(2,4-dimethoxyphenyl)methyl]carbamothioylamino]-4-[2-fluoro-5-[(2,2,2-trifluoroacetyl)amino]phenyl]-2-oxopentyl] acetate
    —— 4-{cyclopropyl-[4-(4-ethoxycarbonyl-3,5-dimethyl-pyrazol-1-yl)-benzoyl]-amino}-piperidine-1-carboxylic acid tert-butyl ester 1578189-50-0 C28H38N4O5
    4-{cyclopropyl-[4-(4-ethoxycarbonyl-3,5-dimethyl-pyrazol-1-yl)-benzoyl]-amino}-piperidine-1-carboxylic acid tert-butyl ester
    —— 4-[(2-amino-4-oxo-4H-thiazol-5-ylidene)-hydrazino]-benzenesulfonic acid 108106-87-2 C9H8N4O4S2
    4-[(2-amino-4-oxo-4H-thiazol-5-ylidene)-hydrazino]-benzenesulfonic acid
    —— 4-(3-Methylbutylamino)-7-(α-D-ribofuranosyl)-7H-pyrrolo<2,3-d>pyrimidin 94773-32-7 C16H24N4O4
    4-(3-Methylbutylamino)-7-(α-D-ribofuranosyl)-7H-pyrrolo<2,3-d>pyrimidin
    —— (4aS,5S,5aS,9aS)-2-Isopropyl-5-phenyl-1,2,4,4a,5,5a-hexahydro-2-aza-cyclobuta[1,2:1,4]dibenzen-3-one 128644-22-4 C20H23NO
    (4aS,5S,5aS,9aS)-2-Isopropyl-5-phenyl-1,2,4,4a,5,5a-hexahydro-2-aza-cyclobuta[1,2:1,4]dibenzen-3-one
    —— 4-methoxybenzyl 2-acetamido-2-deoxy-6-O-(4-methoxytrityl)-β-D-glucopyranosyl-(1->4)-2-acetamido-2-deoxy-3,6-di-O-(4-methoxybenzyl)-β-D-glucopyranoside 824958-51-2 C60H68N2O15
    4-methoxybenzyl 2-acetamido-2-deoxy-6-O-(4-methoxytrityl)-β-D-glucopyranosyl-(1->4)-2-acetamido-2-deoxy-3,6-di-O-(4-methoxybenzyl)-β-D-glucopyranoside
    —— 4'-(1-Chloro-ethyl)-biphenyl-4-carbonitrile 66360-60-9 C15H12ClN
    4'-(1-Chloro-ethyl)-biphenyl-4-carbonitrile
    —— 4-Methyl-6-ethyl-5-benzyl-2-(3-pyridyl)pyrimidin 94312-89-7 C19H19N3
    4-Methyl-6-ethyl-5-benzyl-2-(3-pyridyl)pyrimidin
    —— 4-Nitro-phenylpropargylidenmalonsaeure 91353-87-6 C12H7NO6
    4-Nitro-phenylpropargylidenmalonsaeure
    —— 4,6-Dimethoxy-9-(1-hydroxy-propyl)-phenanthren 111063-70-8 C19H20O3
    4,6-Dimethoxy-9-(1-hydroxy-propyl)-phenanthren
    —— 4-<Pyridyl-(2)>-1-hydroxy-1-cyan-butan 90917-90-1 C10H12N2O
    4-<Pyridyl-(2)>-1-hydroxy-1-cyan-butan
    —— 4-(3,4-Dichlorphenoxy)-chinaldin 92794-52-0 C16H11Cl2NO
    4-(3,4-Dichlorphenoxy)-chinaldin
    —— (+/-)-(4-Bromphenyl)-bernsteinsaeureallylimid 1628-24-6 C13H12BrNO2
    (+/-)-(4-Bromphenyl)-bernsteinsaeureallylimid
    —— (4-Methoxy-1-benzothiophen-7-yl)methanol 2138076-13-6 C10H10O2S
    (4-Methoxy-1-benzothiophen-7-yl)methanol
    —— 4-[2-dimethylaminomethyl-3-(naphthalen-1-yloxy)-propenyl]-benzoic acid 878401-64-0 C23H23NO3
    4-[2-dimethylaminomethyl-3-(naphthalen-1-yloxy)-propenyl]-benzoic acid
    —— 4-chloro-N-(5-chloro-6-(isoquinolin-3-yloxy)pyridin-3-yl)benzenesulfonamide 1013695-83-4 C20H13Cl2N3O3S
    4-chloro-N-(5-chloro-6-(isoquinolin-3-yloxy)pyridin-3-yl)benzenesulfonamide
    —— (4-Propoxy-phenyl)-carbamic acid 2-diethylamino-ethyl ester; hydrochloride 32349-79-4 C16H26N2O3*ClH
    (4-Propoxy-phenyl)-carbamic acid 2-diethylamino-ethyl ester; hydrochloride
    —— 4-[[3-(3-bromopropyl)-1,3-thiazol-3-ium-2-yl]diazenyl]-3-methoxy-N,N-dimethylaniline;bromide 1101125-42-1 Br*C15H20BrN4OS
    4-[[3-(3-bromopropyl)-1,3-thiazol-3-ium-2-yl]diazenyl]-3-methoxy-N,N-dimethylaniline;bromide
    —— [(4-hydroxy-2-oxo-7-phenyl-2H-thiochromene-3-carbonyl)-amino]-acetic acid 1227189-96-9 C18H13NO5S
    [(4-hydroxy-2-oxo-7-phenyl-2H-thiochromene-3-carbonyl)-amino]-acetic acid
    —— 4-Hydroxy-3-methyl-2-pentenal-dimethylhydrazon 66401-02-3 C8H16N2O
    4-Hydroxy-3-methyl-2-pentenal-dimethylhydrazon
    —— 4-bromo-5-methyl-3-oxo-3<i>H</i>-isothiazole-2-carboxylic acid 3-chloro-anilide 26541-90-2 C11H8BrClN2O2S
    4-bromo-5-methyl-3-oxo-3<i>H</i>-isothiazole-2-carboxylic acid 3-chloro-anilide
    —— 4-(N’-benzyl-N’-(2,2-diethoxyethyl)amino)-N,N-dimethylbenzamide 1429616-71-6 C22H30N2O3
    4-(N’-benzyl-N’-(2,2-diethoxyethyl)amino)-N,N-dimethylbenzamide
    —— 4-methyl-6-(4-methyl-4H-1,2,4-triazol-3-yl)-N-[4-(trifluoromethyl)pyridin-2-yl]pyridin-2-amine 1582759-05-4 C15H13F3N6
    4-methyl-6-(4-methyl-4H-1,2,4-triazol-3-yl)-N-[4-(trifluoromethyl)pyridin-2-yl]pyridin-2-amine
    —— 4-Methoxy-benzoic acid 4-[(Z)-p-tolylimino-methyl]-phenyl ester 66279-02-5 C22H19NO3
    4-Methoxy-benzoic acid 4-[(Z)-p-tolylimino-methyl]-phenyl ester
    —— 4,7-bis(4-(tert-butyloxycarbonyl)phenyl)-1,3-dimethylbenzimidazolium iodide 1235442-62-2 C31H35N2O4*I
    4,7-bis(4-(tert-butyloxycarbonyl)phenyl)-1,3-dimethylbenzimidazolium iodide
    —— 4-[(E)-2-(4-Cyano-phenyl)-vinyl]-naphthalene-1-carboxylic acid methyl ester 38581-83-8 C21H15NO2
    4-[(E)-2-(4-Cyano-phenyl)-vinyl]-naphthalene-1-carboxylic acid methyl ester
    —— 4-{[(4-fluorobenzoyl)amino]methyl}-2-oxo-N-(2,2,2-trifluoroethyl)-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazine-6-carboxamide 1141878-66-1 C20H14F7N3O4
    4-{[(4-fluorobenzoyl)amino]methyl}-2-oxo-N-(2,2,2-trifluoroethyl)-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazine-6-carboxamide
    —— 4-(azetidin-3-ylmethoxy)-8-chloro-[1,2,4]triazolo[4,3-a]quinoxaline 1217301-33-1 C13H12ClN5O
    4-(azetidin-3-ylmethoxy)-8-chloro-[1,2,4]triazolo[4,3-a]quinoxaline
    —— 4-methyl-2-phenyl-N-(2-sulfamoylphenyl)sulfonyl-1,3-thiazole-5-carboxamide 1154059-01-4 C17H15N3O5S3
    4-methyl-2-phenyl-N-(2-sulfamoylphenyl)sulfonyl-1,3-thiazole-5-carboxamide