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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-methyl-4-(4-pentenyl)-2,2-dimethyl-1,3-dioxolane 93912-94-8 C11H20O2
    4-methyl-4-(4-pentenyl)-2,2-dimethyl-1,3-dioxolane
    —— 4-methyl-1-(4-nitrophenethyl)pyridin-1-ium bromide 135041-81-5 Br*C14H15N2O2
    4-methyl-1-(4-nitrophenethyl)pyridin-1-ium bromide
    —— 4-(prop-1-en-2-yl)phenyl 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate 41605-64-5 C17H9F17O3S
    4-(prop-1-en-2-yl)phenyl 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate
    —— 4-(2,4-dichloro-benzenesulfonyl)-aniline; hydrochloride 105837-61-4 C12H9Cl2NO2S*ClH
    4-(2,4-dichloro-benzenesulfonyl)-aniline; hydrochloride
    —— 4-chloro-3,4-dimethyl-5-phenyl-4<i>H</i>-pyrazole 1,2-dioxide 63689-88-3 C11H11ClN2O2
    4-chloro-3,4-dimethyl-5-phenyl-4<i>H</i>-pyrazole 1,2-dioxide
    —— 4,6-Diacetyl-7-hydroxybenzofuran 63272-86-6 C12H10O4
    4,6-Diacetyl-7-hydroxybenzofuran
    —— 4,4'-((((2,5-bis(6-methoxyhexyl)-1,4-phenylene)bis(ethyne-2,1-diyl))bis(2,5-dihexyl-4,1-phenylene))bis(ethyne-2,1-diyl))diphenol 1236050-51-3 C76H98O4
    4,4'-((((2,5-bis(6-methoxyhexyl)-1,4-phenylene)bis(ethyne-2,1-diyl))bis(2,5-dihexyl-4,1-phenylene))bis(ethyne-2,1-diyl))diphenol
    —— 4-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-3-oxo-2H-isoquinolinium chloride 76055-95-3 C21H23NO5*ClH
    4-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-3-oxo-2H-isoquinolinium chloride
    —— [(4-chloro-[9]anthryl)-phenyl-methyl]-methyl ether 859776-45-7 C22H17ClO
    [(4-chloro-[9]anthryl)-phenyl-methyl]-methyl ether
    —— 4,8,13,17-tetramethyl-eicosane-1,20-diol 135950-33-3 C24H50O2
    4,8,13,17-tetramethyl-eicosane-1,20-diol
    —— 4-fluoro-N-{5-[3-(1-methyl-1H-pyrazol-4-yl)-6-quinoxalinyl]-3-pyridinyl}-3-(trifluoromethyl)benzenesulfonamide 1083323-14-1 C24H16F4N6O2S
    4-fluoro-N-{5-[3-(1-methyl-1H-pyrazol-4-yl)-6-quinoxalinyl]-3-pyridinyl}-3-(trifluoromethyl)benzenesulfonamide
    —— 4-{4-(4-fluorophenyl)-2-(hydroxy(pyridin-3-yl)methyl)-1,3-thiazol-5-yl}pyridin-2(1H)-one 868993-39-9 C20H14FN3O2S
    4-{4-(4-fluorophenyl)-2-(hydroxy(pyridin-3-yl)methyl)-1,3-thiazol-5-yl}pyridin-2(1H)-one
    —— 4-[3-(3,4-Dimethoxy-phenyl)-isoxazol-5-yl]-butyraldehyde 457627-12-2 C15H17NO4
    4-[3-(3,4-Dimethoxy-phenyl)-isoxazol-5-yl]-butyraldehyde
    —— 4-(ethoxymethylene)amino-3-(p-iodophenlyl)-2-thioxo-2,3-dihydro-1,3-thiazole-5-carbonitrile 1225513-90-5 C13H10IN3OS2
    4-(ethoxymethylene)amino-3-(p-iodophenlyl)-2-thioxo-2,3-dihydro-1,3-thiazole-5-carbonitrile
    —— 4-amino-N-tert-butyl-2-[1-[(2-fluorophenyl)methyl]-5-(1,2-oxazol-3-yl)pyrazol-3-yl]pyrimidine-5-carboxamide 1354041-65-8 C22H22FN7O2
    4-amino-N-tert-butyl-2-[1-[(2-fluorophenyl)methyl]-5-(1,2-oxazol-3-yl)pyrazol-3-yl]pyrimidine-5-carboxamide
    —— 4-Nitrophenyl N-(2-hydroxybenzyl)-N-methylcarbamate 309965-23-9 C15H14N2O5
    4-Nitrophenyl N-(2-hydroxybenzyl)-N-methylcarbamate
    —— 4-(2-chloro-ethoxy)-3-fluoro-2-methyl-pent-2-ene 51954-29-1 C8H14ClFO
    4-(2-chloro-ethoxy)-3-fluoro-2-methyl-pent-2-ene
    —— 4-[2-[(1R,2S,5R)-1-hydroxy-5-methyl-2-propan-2-ylcyclohexyl]ethoxy]-4-oxobutanoic acid 869305-59-9 C16H28O5
    4-[2-[(1R,2S,5R)-1-hydroxy-5-methyl-2-propan-2-ylcyclohexyl]ethoxy]-4-oxobutanoic acid
    —— 4-[4-(α-Hydroxy-α-phenylbenzyl)piperidino]-4'-neopentyl-butyrophenone hydrochloride 57257-10-0 C33H41NO2*ClH
    4-[4-(α-Hydroxy-α-phenylbenzyl)piperidino]-4'-neopentyl-butyrophenone hydrochloride
    —— 4'-fluoro-[1,1'-biphenyl]-4-yl 4-(4-(4-methylene-5-oxotetrahydrofuran-2-yl)butoxy)benzoate 1033761-78-2 C28H25FO5
    4'-fluoro-[1,1'-biphenyl]-4-yl 4-(4-(4-methylene-5-oxotetrahydrofuran-2-yl)butoxy)benzoate
    —— (4-chlorophenyl)(4,4,4-trifluorobutyl)sulfane 1067156-00-6 C10H10ClF3S
    (4-chlorophenyl)(4,4,4-trifluorobutyl)sulfane
    —— (4Z)-4-[(4-methylphenyl)methylidene]-2,3-diphenylcyclobut-2-en-1-one 59625-63-7 C24H18O
    (4Z)-4-[(4-methylphenyl)methylidene]-2,3-diphenylcyclobut-2-en-1-one
    —— 4,2',4',6'-tetraacetoxy-<i>trans</i>-chalcone 42385-90-0 C23H20O9
    4,2',4',6'-tetraacetoxy-<i>trans</i>-chalcone
    —— 4-(4-Iodo-3-methyl-1H-pyrazol-1-yl)butanoic acid 1354705-25-1 C8H11IN2O2
    4-(4-Iodo-3-methyl-1H-pyrazol-1-yl)butanoic acid
    —— 4-Iodo-1-isopropyl-5-methyl-3-nitro-1H-pyrazole 1354704-30-5 C7H10IN3O2
    4-Iodo-1-isopropyl-5-methyl-3-nitro-1H-pyrazole
    —— 4-amidino-4'-[(4-carboxymethylpiperidino)methyl]biphenyl 144528-94-9 C21H25N3O2
    4-amidino-4'-[(4-carboxymethylpiperidino)methyl]biphenyl
    —— 4-[4-(1,3-benzodioxol-5-yloxy)phenyl]sulfonyl-1-(2-methoxyethyl)-N-(oxan-2-yloxy)piperidine-4-carboxamide 226400-66-4 C27H34N2O9S
    4-[4-(1,3-benzodioxol-5-yloxy)phenyl]sulfonyl-1-(2-methoxyethyl)-N-(oxan-2-yloxy)piperidine-4-carboxamide
    —— (4-(3-(diethylamino)-4-nitrophenyl)piperazin-1-yl)(phenyl)methanone 1396778-97-4 C21H26N4O3
    (4-(3-(diethylamino)-4-nitrophenyl)piperazin-1-yl)(phenyl)methanone
    —— 4-[[(2R)-3-fluoro-3-methylbutan-2-yl]amino]-6-(2-oxoazetidin-1-yl)pyrrolo[1,2-b]pyridazine-3-carboxamide 1400876-28-9 C16H20FN5O2
    4-[[(2R)-3-fluoro-3-methylbutan-2-yl]amino]-6-(2-oxoazetidin-1-yl)pyrrolo[1,2-b]pyridazine-3-carboxamide
    —— 4',5,5,5'-tetrachlorospiro[bicyclo[2.2.1]hept-2-ene-6,2'-cyclopent-4-ene]-1',3'-dione 68089-39-4 C11H6Cl4O2
    4',5,5,5'-tetrachlorospiro[bicyclo[2.2.1]hept-2-ene-6,2'-cyclopent-4-ene]-1',3'-dione
    —— 4,6-bis(5-bromo-2-methoxyphenyl)-2-chloropyrimidine 1609114-59-1 C18H13Br2ClN2O2
    4,6-bis(5-bromo-2-methoxyphenyl)-2-chloropyrimidine
    —— 4,5,7,8-tetrabromo-bicyclo[4.2.0]oct-2-ene 1905-09-5 C8H8Br4
    4,5,7,8-tetrabromo-bicyclo[4.2.0]oct-2-ene
    —— (4R,4aR,6aS,10aS)-4,4a,7,7-tetramethylperhydroindeno<1.7a-c>pyran-2-one 136458-68-9 C16H26O2
    (4R,4aR,6aS,10aS)-4,4a,7,7-tetramethylperhydroindeno<1.7a-c>pyran-2-one
    —— 4-fluorophenoxybenzyl acetate 868146-52-5 C15H13FO3
    4-fluorophenoxybenzyl acetate
    —— 4-(4-NC5H4)C6H4C(H)N(C6H3O-2-tBu-5)(triphenylphosphane)palladium(II) 1217501-65-9 C40H35N2OPPd
    4-(4-NC5H4)C6H4C(H)N(C6H3O-2-tBu-5)(triphenylphosphane)palladium(II)
    —— 4,5-diethoxy-2-benzyl-phenethylamine 94432-83-4 C19H25NO2
    4,5-diethoxy-2-benzyl-phenethylamine
    —— 4-[(6-iodo[1,2,4]triazolo[4,3-a]pyridin-3-yl)sulphanyl]aniline 1205853-16-2 C12H9IN4S
    4-[(6-iodo[1,2,4]triazolo[4,3-a]pyridin-3-yl)sulphanyl]aniline
    —— 4-[tert-butyl(dimethyl)silyl]oxy-3'-methylspiro[1,4-dihydroisochromene-3,2'-1-benzofuran]-3'-ol 130413-22-8 C23H30O4Si
    4-[tert-butyl(dimethyl)silyl]oxy-3'-methylspiro[1,4-dihydroisochromene-3,2'-1-benzofuran]-3'-ol
    —— 4-methoxycyclohexanone 8-quinolylhydrazone 102852-55-1 C16H19N3O
    4-methoxycyclohexanone 8-quinolylhydrazone
    —— 4,5-diphenyl-3,6-bis(trimethylsilyl)phthalic acid diethyl ester 1176082-59-9 C30H38O4Si2
    4,5-diphenyl-3,6-bis(trimethylsilyl)phthalic acid diethyl ester
    —— (4-hexyl-phenyl)-dichloro-amine 955997-65-6 C12H17Cl2N
    (4-hexyl-phenyl)-dichloro-amine
    —— 4-bromo-5-({5-chloro-3-[(4-pyrimidin-2-ylpiperidin-1-yl)methyl]pyridin-2-yl}oxy)-1-(cyclopropylmethyl)-1H-benzotriazole 1268314-06-2 C25H25BrClN7O
    4-bromo-5-({5-chloro-3-[(4-pyrimidin-2-ylpiperidin-1-yl)methyl]pyridin-2-yl}oxy)-1-(cyclopropylmethyl)-1H-benzotriazole
    —— 4-(3-amino-phenyl)-6-methyl-pyrimidin-2-yl-amine 915070-07-4 C11H12N4
    4-(3-amino-phenyl)-6-methyl-pyrimidin-2-yl-amine
    —— 4-ethoxyphenyl-(Z)-N-[2-amino-1,2-dicyanovinyl]formamidine 1370421-98-9 C13H13N5O
    4-ethoxyphenyl-(Z)-N-[2-amino-1,2-dicyanovinyl]formamidine
    —— 4-chloro-2-phenyl-5,6-dihydro[1]benzoxepino[5,4-d]pyrimidine 1649456-26-7 C18H13ClN2O
    4-chloro-2-phenyl-5,6-dihydro[1]benzoxepino[5,4-d]pyrimidine
    —— 4-[(4-chlorobenzyl)oxy]pyridine 1-oxide 924311-88-6 C12H10ClNO2
    4-[(4-chlorobenzyl)oxy]pyridine 1-oxide
    —— (4-methyl-[1,2,3]selenadiazol-5-yl)-carbamic acid isopropyl ester 58756-20-0 C7H11N3O2Se
    (4-methyl-[1,2,3]selenadiazol-5-yl)-carbamic acid isopropyl ester
    —— 4-ethyl-1,2,6-trimethyl-pyridinium 113790-85-5 C10H16N
    4-ethyl-1,2,6-trimethyl-pyridinium
    —— 4-N-Acetyl-1-(5-desoxy-β-D-ribo-hexafuranosyl)cytosin 73045-63-3 C12H17N3O6
    4-N-Acetyl-1-(5-desoxy-β-D-ribo-hexafuranosyl)cytosin
    —— 4-(3-methoxy-phenyl)-3-methylene-piperidin-2-one 69070-29-7 C13H15NO2
    4-(3-methoxy-phenyl)-3-methylene-piperidin-2-one