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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-Bromo-benzenesulfonic acid 2,2,5-trimethyl-2H-chromen-7-yl ester 130208-90-1 C18H17BrO4S
    4-Bromo-benzenesulfonic acid 2,2,5-trimethyl-2H-chromen-7-yl ester
    —— 4-Imidazolidinone, 2-sulfonyl- 1314980-36-3 C3H4N2O3S
    4-Imidazolidinone, 2-sulfonyl-
    —— (4aS,8aS,1'S)-N-(1'-phenyl)-ethyl-4-oxa-perhydrochinolin-2-on 777939-68-1 C16H21NO2
    (4aS,8aS,1'S)-N-(1'-phenyl)-ethyl-4-oxa-perhydrochinolin-2-on
    —— (4-Chloro-phenoxy)-acetic acid N'-[2-(4-chloro-2-methyl-phenoxy)-acetyl]-hydrazide 94622-07-8 C17H16Cl2N2O4
    (4-Chloro-phenoxy)-acetic acid N'-[2-(4-chloro-2-methyl-phenoxy)-acetyl]-hydrazide
    —— 4-(4-Fluoro-phenyl)-1-(4-oxo-4-thiophen-2-yl-butyl)-piperidine-4-carboxylic acid dimethylamide 2802-36-0 C22H27FN2O2S
    4-(4-Fluoro-phenyl)-1-(4-oxo-4-thiophen-2-yl-butyl)-piperidine-4-carboxylic acid dimethylamide
    —— 4,4-di-tert-butyl-2,2,5,5-tetramethyl-hexan-3-ol 857793-80-7 C18H38O
    4,4-di-tert-butyl-2,2,5,5-tetramethyl-hexan-3-ol
    —— 4-(1-(benzylimino)ethyl)-2,6-di-tert-butylphenol 81389-77-7 C23H31NO
    4-(1-(benzylimino)ethyl)-2,6-di-tert-butylphenol
    —— 4-(4-hydroxy-4-phenylpiperidin-1-yl)isoquinoline-6-carboxamide 1235380-84-3 C21H21N3O2
    4-(4-hydroxy-4-phenylpiperidin-1-yl)isoquinoline-6-carboxamide
    —— 4-(Difluoromethyl)-5-hydroxy-6-methylpyridine-2-sulfonamide 1807122-99-1 C7H8F2N2O3S
    4-(Difluoromethyl)-5-hydroxy-6-methylpyridine-2-sulfonamide
    —— 4-(3-pyridyl)-morpholin-3-one 857263-96-8 C9H10N2O2
    4-(3-pyridyl)-morpholin-3-one
    —— 4-hydroxy-benzaldehyde (5-methyl-4-oxo-3-p-tolyl-thiazolidin-2-ylidene)-hydrazone 98654-68-3 C18H17N3O2S
    4-hydroxy-benzaldehyde (5-methyl-4-oxo-3-p-tolyl-thiazolidin-2-ylidene)-hydrazone
    —— (4-methyl-2-piperidin-1-ylmethyl-phenoxy)-diphenyl-borane 70501-11-0 C25H28BNO
    (4-methyl-2-piperidin-1-ylmethyl-phenoxy)-diphenyl-borane
    —— 4,4-bis(3,4-dimethoxyphenyl)-N-(4-methoxyphenyl)but-3-enamide 137744-73-1 C27H29NO6
    4,4-bis(3,4-dimethoxyphenyl)-N-(4-methoxyphenyl)but-3-enamide
    —— 4-(dichloromethylene)-7-methoxy-2,2-dimethylchroman-3-yl nitrate 128935-25-1 C13H13Cl2NO5
    4-(dichloromethylene)-7-methoxy-2,2-dimethylchroman-3-yl nitrate
    —— 4-(amino-anilino-[1,3,5]triazin-2-yl)-butyric acid ethyl ester 100950-64-9 C15H19N5O2
    4-(amino-anilino-[1,3,5]triazin-2-yl)-butyric acid ethyl ester
    —— 4,5-dihydrothiazol-2-yl 2-O-acetyl-3,4,6-tri-O-benzyl-1-thio-β-D-glucopyranoside 873093-20-0 C32H35NO6S2
    4,5-dihydrothiazol-2-yl 2-O-acetyl-3,4,6-tri-O-benzyl-1-thio-β-D-glucopyranoside
    —— 4-((1S,2S,3S,6R)-2-[1,3]Dioxolan-2-yl-3,7,7-trimethyl-bicyclo[4.1.0]hept-2-yl)-butyraldehyde 107291-41-8 C17H28O3
    4-((1S,2S,3S,6R)-2-[1,3]Dioxolan-2-yl-3,7,7-trimethyl-bicyclo[4.1.0]hept-2-yl)-butyraldehyde
    —— 4-(3,4-dimethoxybenzyl)-1,4-dihydro-3H-spiro[benzo[f]quinoline-2,1'-cyclohexane]2',6'-dione 1258441-09-6 C27H27NO4
    4-(3,4-dimethoxybenzyl)-1,4-dihydro-3H-spiro[benzo[f]quinoline-2,1'-cyclohexane]2',6'-dione
    —— 4'',6''-O-cyclohexylidene-1,3,2',6',3''-pentakis(N-tert-butoxycarbonyl)dibekacin 78740-49-5 C49H85N5O18
    4'',6''-O-cyclohexylidene-1,3,2',6',3''-pentakis(N-tert-butoxycarbonyl)dibekacin
    —— 4-methoxy-1-phenylpyridin-2(1H)-one 1429318-32-0 C12H11NO2
    4-methoxy-1-phenylpyridin-2(1H)-one
    —— 4,5-dihydro-α-(2-methylpropyl)-5-oxo-(S)-1,2-benzothiazepine-2(3H)-acetic acid methyl ester 1,1-dioxide 1153686-98-6 C16H21NO5S
    4,5-dihydro-α-(2-methylpropyl)-5-oxo-(S)-1,2-benzothiazepine-2(3H)-acetic acid methyl ester 1,1-dioxide
    —— [4-[3-[2-(6-Amino-2-ethylpyridin-3-yl)ethynyl]-2-methylpyridin-4-yl]-2-fluorophenyl]-(4-methylpiperazin-1-yl)methanone 1253055-35-4 C27H28FN5O
    [4-[3-[2-(6-Amino-2-ethylpyridin-3-yl)ethynyl]-2-methylpyridin-4-yl]-2-fluorophenyl]-(4-methylpiperazin-1-yl)methanone
    —— 4-[6-(N-t-Butyloxycarbonyl)aminohexyloxy]-2,2',4'-trihydroxybenzophenone 174603-84-0 C24H31NO7
    4-[6-(N-t-Butyloxycarbonyl)aminohexyloxy]-2,2',4'-trihydroxybenzophenone
    —— 4-piperazin-1-yl-N-[(1S,2S,3S,5R)-2,6,6-trimethylbicyclo[3.1.1]hept-3-yl]pyrimidin-2-amine 1201173-39-8 C18H29N5
    4-piperazin-1-yl-N-[(1S,2S,3S,5R)-2,6,6-trimethylbicyclo[3.1.1]hept-3-yl]pyrimidin-2-amine
    —— 4-bromomethylene-5,5-dimethyl-3-phenyl-2-oxazolidinone 78489-23-3 C12H12BrNO2
    4-bromomethylene-5,5-dimethyl-3-phenyl-2-oxazolidinone
    —— 4-amino-2-methyl-6,7-dihydro-1,4-dioxino<2,3-d>pyrimidine 127535-87-9 C7H9N3O2
    4-amino-2-methyl-6,7-dihydro-1,4-dioxino<2,3-d>pyrimidine
    —— 4-(4-Chloro-3-ethylphenyloxy)-6-methyl-4,5,6,7-tetrahydrofuro[2,3-c] pyridine hydrochloride 1067632-87-4 C16H18ClNO2*ClH
    4-(4-Chloro-3-ethylphenyloxy)-6-methyl-4,5,6,7-tetrahydrofuro[2,3-c] pyridine hydrochloride
    —— 4-(2-methyl-5-trifluoromethyl-2H-pyrazol-3-yloxy)-5-nitro-6-(4-phenylsulfanyl-piperidin-1-yl)-pyrimidine 733749-17-2 C20H19F3N6O3S
    4-(2-methyl-5-trifluoromethyl-2H-pyrazol-3-yloxy)-5-nitro-6-(4-phenylsulfanyl-piperidin-1-yl)-pyrimidine
    —— (4-chloro-furo[3,2-c]pyridin-2-yl)-{4-[2-(1R-hydroxy-ethyl)-pyrimidin-4-yl]-3R,5S-dimethyl-piperazin-1-yl}-methanone 300551-88-6 C20H22ClN5O3
    (4-chloro-furo[3,2-c]pyridin-2-yl)-{4-[2-(1R-hydroxy-ethyl)-pyrimidin-4-yl]-3R,5S-dimethyl-piperazin-1-yl}-methanone
    —— 4-(azetidin-1-yl)-N-(4-fluorophenyl)-6-methylpyrimidin-2-amine 1394803-67-8 C14H15FN4
    4-(azetidin-1-yl)-N-(4-fluorophenyl)-6-methylpyrimidin-2-amine
    —— [4,5α-epoxy-7α-((Ξ)-1-hydroxy-1-phenyl-ethyl)-3,6-dimethoxy-17-methyl-6α,14α-etheno-morphinan-8α-yl]-phenyl-methanone 54170-00-2 C36H37NO5
    [4,5α-epoxy-7α-((Ξ)-1-hydroxy-1-phenyl-ethyl)-3,6-dimethoxy-17-methyl-6α,14α-etheno-morphinan-8α-yl]-phenyl-methanone
    —— (4aR,6aS,12S)-8-Hydroxy-4a,6a,12-trimethyl-3,4,4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-tetradecahydro-pentaleno[2,1-a]phenanthrene-2,7-dione 2325-58-8 C23H30O3
    (4aR,6aS,12S)-8-Hydroxy-4a,6a,12-trimethyl-3,4,4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-tetradecahydro-pentaleno[2,1-a]phenanthrene-2,7-dione
    —— 4-[(2-Chloro-4-hydroxy-3-iodo-5-methoxyphenyl)methylene]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one 828299-47-4 C18H14ClIN2O3
    4-[(2-Chloro-4-hydroxy-3-iodo-5-methoxyphenyl)methylene]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one
    —— 4-Methyl-N-[(Z)-3-phenyl-non-2-en-4-yn-(E)-ylidene]-benzenesulfonamide 566190-71-4 C22H23NO2S
    4-Methyl-N-[(Z)-3-phenyl-non-2-en-4-yn-(E)-ylidene]-benzenesulfonamide
    —— 4-amino-<i>N</i>-(3-oxo-2,3-dihydro-[1,2,4]triazin-5-yl)-benzenesulfonamide 27111-93-9 C9H9N5O3S
    4-amino-<i>N</i>-(3-oxo-2,3-dihydro-[1,2,4]triazin-5-yl)-benzenesulfonamide
    —— (4R,5R)-4-(5-((6-cyclopropylpyridin-3-yl)ethynyl)-2-fluoropyridin-3-yl)-5-(4-fluorophenyl)oxazolidin-2-one 1375750-74-5 C24H17F2N3O2
    (4R,5R)-4-(5-((6-cyclopropylpyridin-3-yl)ethynyl)-2-fluoropyridin-3-yl)-5-(4-fluorophenyl)oxazolidin-2-one
    —— 4-amino-2-butoxy-8-((2-ethyl-1,2,3,4-tetrahydroisoquinolin-6-yl)methyl)-7,8-dihydropteridin-6(5H)-one 1228586-44-4 C22H30N6O2
    4-amino-2-butoxy-8-((2-ethyl-1,2,3,4-tetrahydroisoquinolin-6-yl)methyl)-7,8-dihydropteridin-6(5H)-one
    —— 4-cyclohexyl-N,1-diphenylbut-2-yn-1-imine 134589-75-6 C22H23N
    4-cyclohexyl-N,1-diphenylbut-2-yn-1-imine
    —— (4-Oxo-2-phenyl-4H-quinazolin-3-yl)-acetic acid [1-(4-amino-phenyl)-meth-(E)-ylidene]-hydrazide 72737-74-7 C23H19N5O2
    (4-Oxo-2-phenyl-4H-quinazolin-3-yl)-acetic acid [1-(4-amino-phenyl)-meth-(E)-ylidene]-hydrazide
    —— 4-Carboxy-5-chlor-6-(2-oxo-propyl)-pyrimidin-2-on 70663-02-4 C8H7ClN2O4
    4-Carboxy-5-chlor-6-(2-oxo-propyl)-pyrimidin-2-on
    —— 4-[[4-(3,4,5-Trimethoxyanilino)-1,3,5-triazin-2-yl]amino]phenol 333726-89-9 C18H19N5O4
    4-[[4-(3,4,5-Trimethoxyanilino)-1,3,5-triazin-2-yl]amino]phenol
    —— 4-ethoxy-3-ethyl-1,2-diphenyl-1,2,3,4-tetrahydro-cinnoline 72944-54-8 C24H26N2O
    4-ethoxy-3-ethyl-1,2-diphenyl-1,2,3,4-tetrahydro-cinnoline
    —— 4-(3,5,5-Trimethyl-4,5-dihydro-pyrazol-1-yl)-benzoic acid [1-(4-methoxy-phenyl)-meth-(Z)-ylidene]-hydrazide 71478-92-7 C21H24N4O2
    4-(3,5,5-Trimethyl-4,5-dihydro-pyrazol-1-yl)-benzoic acid [1-(4-methoxy-phenyl)-meth-(Z)-ylidene]-hydrazide
    —— 4-Eicosyl-4'-methyl-2,2'-bipyridyl 71879-23-7 C31H50N2
    4-Eicosyl-4'-methyl-2,2'-bipyridyl
    —— 4a-ethyl-2,3,4,4a,5,6,7,11c-octahydro-pyrano[3,2-<i>c</i>]carbazole-6-carbonitrile 71240-07-8 C18H20N2O
    4a-ethyl-2,3,4,4a,5,6,7,11c-octahydro-pyrano[3,2-<i>c</i>]carbazole-6-carbonitrile
    —— 4-Bromo-2,3,3,4,4-pentafluoro-2-(1,1,2,3,3,3-hexafluoro-2-heptafluoropropyloxy-propoxy)-butyric acid methyl ester 72266-28-5 C11H3BrF18O4
    4-Bromo-2,3,3,4,4-pentafluoro-2-(1,1,2,3,3,3-hexafluoro-2-heptafluoropropyloxy-propoxy)-butyric acid methyl ester
    —— (4R,5S)-1,5-dimethyl-4-phenylimidazolidin-2-one-3-(2',3'-dibromopropionyl) 473907-77-6 C14H16Br2N2O2
    (4R,5S)-1,5-dimethyl-4-phenylimidazolidin-2-one-3-(2',3'-dibromopropionyl)
    —— 4,4′-bis(4,4,5,5-tetramethyl[1,3,2]dioxaborolan)-1,1′-(2,2′,5,5′-tetramethoxy)biphenyl 1338777-83-5 C28H40B2O8
    4,4′-bis(4,4,5,5-tetramethyl[1,3,2]dioxaborolan)-1,1′-(2,2′,5,5′-tetramethoxy)biphenyl
    —— 4-amino-5-bromo-2-hydroxybenzeneacetic acid methyl ester 894771-95-0 C9H10BrNO3
    4-amino-5-bromo-2-hydroxybenzeneacetic acid methyl ester
    —— 4'-Pentylphenyl-4-octyloxy-tellurobenzoat 70057-89-5 C26H36O2Te
    4'-Pentylphenyl-4-octyloxy-tellurobenzoat