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中文名称 英文名称 CAS号 化学式 结构式图片
—— 4,8-dichloro-4,8-diethylpyrazabole 109214-87-1 C10H16B2Cl2N4
4,8-dichloro-4,8-diethylpyrazabole
—— 4-acetyl-6-(1-ethoxyvinyl)pyrimidine 197434-19-8 C10H12N2O2
4-acetyl-6-(1-ethoxyvinyl)pyrimidine
—— 4-(pyridin-3-yl)quinolin-6-amine 1417178-55-2 C14H11N3
4-(pyridin-3-yl)quinolin-6-amine
—— 4-(1-bromo-1-methylethyl)tetrahydrofuran-2-one 1421638-85-8 C7H11BrO2
4-(1-bromo-1-methylethyl)tetrahydrofuran-2-one
—— 4-Fluoro-2-methyl-1-[2-[2-(4-methylphenyl)ethynyl]phenyl]benzene 1021176-17-9 C22H17F
4-Fluoro-2-methyl-1-[2-[2-(4-methylphenyl)ethynyl]phenyl]benzene
—— 4-(4-cyano-2-methoxyphenyl)-2-methyl-N-(thiazol-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonamide 1450921-18-2 C20H18N4O4S2
4-(4-cyano-2-methoxyphenyl)-2-methyl-N-(thiazol-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonamide
—— 4-(7-chloro-1-propyl-1H-indazol-3-yl)phenyl 3,3-dimethylbutanoate 680612-95-7 C22H25ClN2O2
4-(7-chloro-1-propyl-1H-indazol-3-yl)phenyl 3,3-dimethylbutanoate
—— 4-phenyl-2-oxo-3-butynenitrile 84452-22-2 C10H5NO
4-phenyl-2-oxo-3-butynenitrile
—— 4-(3-amino-1,4-dioxo-1,4-dihydronaphthalene-2-ylamino)-4-oxobutanoic acid 1333335-07-1 C14H12N2O5
4-(3-amino-1,4-dioxo-1,4-dihydronaphthalene-2-ylamino)-4-oxobutanoic acid
—— 4'-[[2-n-Propyl-6-(1-methyl-5-trifluoromethyl-benzimidazol-2-yl)-benzimidazol-1-yl]methyl]biphenyl-2-carboxylic acid 141838-10-0 C33H27F3N4O2
4'-[[2-n-Propyl-6-(1-methyl-5-trifluoromethyl-benzimidazol-2-yl)-benzimidazol-1-yl]methyl]biphenyl-2-carboxylic acid
—— (4aS,7aS,12bR)-7,7,9-Trimethoxy-3-methyl-2,3,4,4a,5,6,7,7a-octahydro-1H-8-oxa-3-aza-benzo[d]fluorene 93758-31-7 C19H27NO4
(4aS,7aS,12bR)-7,7,9-Trimethoxy-3-methyl-2,3,4,4a,5,6,7,7a-octahydro-1H-8-oxa-3-aza-benzo[d]fluorene
—— 4-bromo-benzoic acid 3-oxo-cyclobutylmethyl ester 1019842-23-9 C12H11BrO3
4-bromo-benzoic acid 3-oxo-cyclobutylmethyl ester
—— [4-(3,5-Diacetyloxy-12-methoxy-17-methyl-8,10-dioxatetracyclo[7.7.1.02,7.011,16]heptadeca-2(7),3,5,11(16),12,14-hexaen-9-yl)phenyl] acetate 2657-08-1 C29H26O9
[4-(3,5-Diacetyloxy-12-methoxy-17-methyl-8,10-dioxatetracyclo[7.7.1.02,7.011,16]heptadeca-2(7),3,5,11(16),12,14-hexaen-9-yl)phenyl] acetate
—— 4,6-O-benzylidene-2,3-bis(4-(benzyloxy)-3,5-dihydroxybenzoyl)-α-D-glucopyranose 1399278-54-6 C41H36O14
4,6-O-benzylidene-2,3-bis(4-(benzyloxy)-3,5-dihydroxybenzoyl)-α-D-glucopyranose
—— 4,5,6-Trimethyl-[1,2,3]triazine 1-oxide 77202-14-3 C6H9N3O
4,5,6-Trimethyl-[1,2,3]triazine 1-oxide
—— (4-Chloro-phenyl)-(4-trifluoromethyl-phenoxy)-acetic acid methyl ester 4718-29-0 C16H12ClF3O3
(4-Chloro-phenyl)-(4-trifluoromethyl-phenoxy)-acetic acid methyl ester
—— 4-ethoxy-4-methyl-2,6-di-tert-butylcyclohexa-2,5-dienone 38876-35-6 C17H28O2
4-ethoxy-4-methyl-2,6-di-tert-butylcyclohexa-2,5-dienone
—— 4-acetoxy-3-(4-methoxy-phenylazo)-toluene 26054-09-1 C16H16N2O3
4-acetoxy-3-(4-methoxy-phenylazo)-toluene
—— 4-((6-deoxy-2,4-di-O-acetyl-3-O-methyl-α-L-mannopyranosyl)oxy)-3,4-dimethoxy-4-hydroxymethyl-6-methylthio-toluene 300810-67-7 C22H30O10S
4-((6-deoxy-2,4-di-O-acetyl-3-O-methyl-α-L-mannopyranosyl)oxy)-3,4-dimethoxy-4-hydroxymethyl-6-methylthio-toluene
—— 4-(2-tri-iso-propylsilanylsulfanyl-phenyl)-piperidine-1-carboxylic acid tert-butyl ester 773853-94-4 C25H43NO2SSi
4-(2-tri-iso-propylsilanylsulfanyl-phenyl)-piperidine-1-carboxylic acid tert-butyl ester
—— 4,5-dihydro-3H-benzo<b><1,4>dioxonin-2,6-dione 91201-67-1 C11H10O4
4,5-dihydro-3H-benzo<b><1,4>dioxonin-2,6-dione
—— [(4-hydroxymethylphenyl)-methyl] 2,3,4,6-tetra-O-allyl-β-D-gluco-hexopyranoside 252060-83-6 C26H36O7
[(4-hydroxymethylphenyl)-methyl] 2,3,4,6-tetra-O-allyl-β-D-gluco-hexopyranoside
—— 4,4'-oxy-bis[2,3-bis(hydroxyimino)quinoxaline] 339182-98-8 C16H14N8O5
4,4'-oxy-bis[2,3-bis(hydroxyimino)quinoxaline]
—— 4-(4-Methoxy-phenyl)-5-[(Z)-2-trifluoromethyl-phenylimino]-[1,2,4]dithiazolidine-3-thione 135472-02-5 C16H11F3N2OS3
4-(4-Methoxy-phenyl)-5-[(Z)-2-trifluoromethyl-phenylimino]-[1,2,4]dithiazolidine-3-thione
—— 4-benzyl-1,4-dihydro-pyrrolo[3,2-b]pyrrole-2-carboxylic acid 1007386-49-3 C14H12N2O2
4-benzyl-1,4-dihydro-pyrrolo[3,2-b]pyrrole-2-carboxylic acid
—— 4-bromobenzyl (S)-2-(tert-butoxycarbonylamino)-3-phenylpropanoate 1401317-39-2 C21H24BrNO4
4-bromobenzyl (S)-2-(tert-butoxycarbonylamino)-3-phenylpropanoate
—— 4-Bromo-1-cyclopentyl-1H-1,2,3-triazole 1260667-93-3 C7H10BrN3
4-Bromo-1-cyclopentyl-1H-1,2,3-triazole
—— (4-nitrophenyl)methyl (2R,3Z,5R)-3-[2-(oxan-2-yloxy)ethylidene]-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylate 64245-92-7 C20H22N2O8
(4-nitrophenyl)methyl (2R,3Z,5R)-3-[2-(oxan-2-yloxy)ethylidene]-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylate
—— <4.5>Coronan 108451-23-6 C16H24
<4.5>Coronan
—— 4-(4-bromo-phenyl)-5-phenyl-thiazole-2-carboxylic acid ethyl ester 721399-92-4 C18H14BrNO2S
4-(4-bromo-phenyl)-5-phenyl-thiazole-2-carboxylic acid ethyl ester
—— (4S,5R)-{5-[N-(9-fluorenylmethoxycarbonyl)-N-(2,2-diethoxyethyl)aminomethyl]-2,2-dimethyl[1,3]dioxolan-4-yl}methanol 603959-11-1 C28H37NO7
(4S,5R)-{5-[N-(9-fluorenylmethoxycarbonyl)-N-(2,2-diethoxyethyl)aminomethyl]-2,2-dimethyl[1,3]dioxolan-4-yl}methanol
—— 4-ethoxy-2-methyl-3-propoxy-benzoyl chloride 100607-86-1 C13H17ClO3
4-ethoxy-2-methyl-3-propoxy-benzoyl chloride
—— (4-(3-hydroxybut-1-ynyl)phenyl)acetic acid 915038-35-6 C12H12O3
(4-(3-hydroxybut-1-ynyl)phenyl)acetic acid
—— 4-(2-fluoro-4-nitrophenoxy)-6-methoxy-7-(3-(piperidin-1-yl)propoxy)quinoline 1436418-00-6 C24H26FN3O5
4-(2-fluoro-4-nitrophenoxy)-6-methoxy-7-(3-(piperidin-1-yl)propoxy)quinoline
—— 4-aminobenzimidazole dihydrochloride 37724-28-0 C7H7N3*2ClH
4-aminobenzimidazole dihydrochloride
—— 4-chloro-2-((2-(2,3-dihydrobenzo[b][1,4]dioxine-6-carbonyl)hydrazineylidene)methyl)phenyl acetate 1362456-32-3 C18H15ClN2O5
4-chloro-2-((2-(2,3-dihydrobenzo[b][1,4]dioxine-6-carbonyl)hydrazineylidene)methyl)phenyl acetate
—— 4-(5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)-fluoren-9-one oxime 1021019-67-9 C21H17N3O
4-(5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)-fluoren-9-one oxime
—— 4-{3-[4-(4-chloro-5-methylsulfanyl-6-morpholin-4-ylpyrimidin-2-yl)-3-fluorophenyl]ureido}benzenesulfonamide 1313720-21-6 C22H22ClFN6O4S2
4-{3-[4-(4-chloro-5-methylsulfanyl-6-morpholin-4-ylpyrimidin-2-yl)-3-fluorophenyl]ureido}benzenesulfonamide
—— [4-(4-isopropyl-phenyl)-2,6-dioxo-cyclohexyl]-acetic acid 855417-44-6 C17H20O4
[4-(4-isopropyl-phenyl)-2,6-dioxo-cyclohexyl]-acetic acid
—— 4-(2-(4-Chlorobenzylidene)hydrazinyl)-5-(4-ethoxyphenyl)-4H-1,2,4-triazole-3-thiol 624724-94-3 C17H16ClN5OS
4-(2-(4-Chlorobenzylidene)hydrazinyl)-5-(4-ethoxyphenyl)-4H-1,2,4-triazole-3-thiol
—— (4a<i>R</i>)-2-isopropoxy-6<i>c</i>,7<i>c</i>,8<i>t</i>-trimethoxy-3-methyl-(4a<i>r</i>,8a<i>t</i>)-hexahydro-pyrano[2,3-<i>e</i>][1,3,2]oxazaphosphinine 2<i>t</i>-sulfide 57557-38-7 C13H26NO6PS
(4a<i>R</i>)-2-isopropoxy-6<i>c</i>,7<i>c</i>,8<i>t</i>-trimethoxy-3-methyl-(4a<i>r</i>,8a<i>t</i>)-hexahydro-pyrano[2,3-<i>e</i>][1,3,2]oxazaphosphinine 2<i>t</i>-sulfide
—— 4,5-Dichlornaphthalsaeure-N-ethylimid 25470-47-7 C14H9Cl2NO2
4,5-Dichlornaphthalsaeure-N-ethylimid
—— 4-chloro-7,9-dimethoxy-12-butyl-6-(4'-nitrophenyl)pyrimido[b,f][1,5]benzodiazocine 1007198-15-3 C24H26ClN5O4
4-chloro-7,9-dimethoxy-12-butyl-6-(4'-nitrophenyl)pyrimido[b,f][1,5]benzodiazocine
—— 4-nitro-3-phenyl-1-[3]pyridyl-butan-1-one 106595-98-6 C15H14N2O3
4-nitro-3-phenyl-1-[3]pyridyl-butan-1-one
—— 4-phthalimido-naphthalene-1,8-dicarboxylic acid 858023-17-3 C20H11NO6
4-phthalimido-naphthalene-1,8-dicarboxylic acid
—— 4-nitrobenzyl (1R,5S,6S)-2-(1-(3-trifluoromethylbenzyl)-azetidine-3-yl-thio)-6-[(1R)-1-hydroxylethyl]-1-methylcarbapen-2-em-3-ester carboxylate 878391-82-3 C28H28F3N3O6S
4-nitrobenzyl (1R,5S,6S)-2-(1-(3-trifluoromethylbenzyl)-azetidine-3-yl-thio)-6-[(1R)-1-hydroxylethyl]-1-methylcarbapen-2-em-3-ester carboxylate
—— {4-[(2β,3α,5α,17α)-3,17-dihydroxy-21-(trimethyIsilyl)pregn-20-yn-2-yl]piperazin-1-yI}[(2S)-1-(naphthaIen-1-ylcarbonyl)pyrrolidin-2-yl]methanone 1228036-46-1 C44H61N3O4Si
{4-[(2β,3α,5α,17α)-3,17-dihydroxy-21-(trimethyIsilyl)pregn-20-yn-2-yl]piperazin-1-yI}[(2S)-1-(naphthaIen-1-ylcarbonyl)pyrrolidin-2-yl]methanone
—— 4-(3-ethoxycarbonyl-1-ethyl-4-oxo-1,4-dihydro-quinolin-7-yl)-2,6-dimethyl-pyridine-3,5-dicarboxylic acid diethyl ester 40034-54-6 C27H30N2O7
4-(3-ethoxycarbonyl-1-ethyl-4-oxo-1,4-dihydro-quinolin-7-yl)-2,6-dimethyl-pyridine-3,5-dicarboxylic acid diethyl ester
—— 4-(4-bromo-phenyl)-5-phenyl-2-trifluoromethyl-1(3)<i>H</i>-imidazole 36740-76-8 C16H10BrF3N2
4-(4-bromo-phenyl)-5-phenyl-2-trifluoromethyl-1(3)<i>H</i>-imidazole
—— (4S,7R,8S,9S,13Z,16S(S))-4,8-dihydroxy-16-(1-methyl-2-(2-pyridyl)ethyl)-1-oxa-5,5,9,13-tetramethyl-7-(prop-2-en-1-yl)-cyclohexadec-13-ene-2,6-dione 305840-55-5 C30H45NO5
(4S,7R,8S,9S,13Z,16S(S))-4,8-dihydroxy-16-(1-methyl-2-(2-pyridyl)ethyl)-1-oxa-5,5,9,13-tetramethyl-7-(prop-2-en-1-yl)-cyclohexadec-13-ene-2,6-dione