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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-chloro-3-(3-ethyl-1H-1,2,4-triazol-5-yl)thiophen-2-amine 1239462-51-1 C8H9ClN4S
    4-chloro-3-(3-ethyl-1H-1,2,4-triazol-5-yl)thiophen-2-amine
    —— 4,5,6,8-tetra-O-acetyl-3,7-anhydro-2-bromo-2-deoxy-D-threo-L-galacto-octononitrile 85230-55-3 C16H20BrNO9
    4,5,6,8-tetra-O-acetyl-3,7-anhydro-2-bromo-2-deoxy-D-threo-L-galacto-octononitrile
    —— 4-tert-butyl-N-[1-(dimethylamino)meth-(E)-ylidene]-2-fluoro-6-methylbenzamide 1423130-32-8 C15H21FN2O
    4-tert-butyl-N-[1-(dimethylamino)meth-(E)-ylidene]-2-fluoro-6-methylbenzamide
    —— 4-Methoxycarbonyl-4,8-dimethyl-5,12-dioxo-tridecansaeure-methylester 14837-95-7 C18H30O6
    4-Methoxycarbonyl-4,8-dimethyl-5,12-dioxo-tridecansaeure-methylester
    —— 4-(4-oxo-2-thioxo-1,2,3,4-tetrahydroquinazoline-3-carbonyl)-5,6-diphenyl-pyridazin-3(2H)-one 1187767-48-1 C25H16N4O3S
    4-(4-oxo-2-thioxo-1,2,3,4-tetrahydroquinazoline-3-carbonyl)-5,6-diphenyl-pyridazin-3(2H)-one
    —— 4-Chloro-2-ethyl-6-methoxy-5-nitropyrimidine 1073437-62-3 C7H8ClN3O3
    4-Chloro-2-ethyl-6-methoxy-5-nitropyrimidine
    —— 4-ethoxy-6-oxo-6<i>H</i>-pyran-2-carboxylic acid amide 117890-21-8 C8H9NO4
    4-ethoxy-6-oxo-6<i>H</i>-pyran-2-carboxylic acid amide
    —— 4-[(2R)-2-({[(2S)-2-Hydroxy-3-phenoxypropyl]amino}methyl)-3,4-dihydro-2H-chromen-6-yl]benzoic acid 437764-42-6 C26H27NO5
    4-[(2R)-2-({[(2S)-2-Hydroxy-3-phenoxypropyl]amino}methyl)-3,4-dihydro-2H-chromen-6-yl]benzoic acid
    —— 4,9-bis-benzylsulfanyl-[1,4]dithiino[2,3-<i>c</i>;5,6-<i>d</i>']dipyridazine 30559-61-6 C22H16N4S4
    4,9-bis-benzylsulfanyl-[1,4]dithiino[2,3-<i>c</i>;5,6-<i>d</i>']dipyridazine
    —— 4-Bromo-benzoic acid (2Z,6Z)-(R)-cyclonona-2,6-dienyl ester 130821-69-1 C16H17BrO2
    4-Bromo-benzoic acid (2Z,6Z)-(R)-cyclonona-2,6-dienyl ester
    —— 4-amino-N-(1-((3-chloro-2,4-difluorophenyl)amino)-6-methylisoquinolin-5-yl)thieno[3,2-d]pyrimidine-7-carboxamide 1446113-30-9 C23H15ClF2N6OS
    4-amino-N-(1-((3-chloro-2,4-difluorophenyl)amino)-6-methylisoquinolin-5-yl)thieno[3,2-d]pyrimidine-7-carboxamide
    —— 4-(2-chlorophenyl)-1-[5-methyl-2-(propionylamino)pyridin-4-yl]-1H-pyrrole-3-carboxamide 1445888-61-8 C20H19ClN4O2
    4-(2-chlorophenyl)-1-[5-methyl-2-(propionylamino)pyridin-4-yl]-1H-pyrrole-3-carboxamide
    —— 4,4,4-trifluoro-1-(2-furyl)-2-butynyl acetate 928658-57-5 C10H7F3O3
    4,4,4-trifluoro-1-(2-furyl)-2-butynyl acetate
    —— 4-[6-(1-benzothien-5-yl)pyridazin-3-yl]-1,4-diazatricyclo[4.3.1.1(3,8)]undecane 4-methylbenzenesulfonate 1258933-19-5 C7H8O3S*C21H22N4S
    4-[6-(1-benzothien-5-yl)pyridazin-3-yl]-1,4-diazatricyclo[4.3.1.1(3,8)]undecane 4-methylbenzenesulfonate
    —— (4R)-3-[(5S)-5-{[tert-butyI(dimethyl)silyl]oxy}-5-(4-fluorophenyl)-pentanoyl]-4-phenyl-1,3-oxazolidin-2-one 1227268-32-7 C26H34FNO4Si
    (4R)-3-[(5S)-5-{[tert-butyI(dimethyl)silyl]oxy}-5-(4-fluorophenyl)-pentanoyl]-4-phenyl-1,3-oxazolidin-2-one
    —— 4,5,9,10-tetrahydro-4<i>r</i>,10<i>c</i>;5<i>t</i>,9<i>t</i>-diepisulfano-cycloocta[1,2-<i>c</i>;5,6-<i>c</i>']bis[1,2,5]thiadiazole 73774-71-7 C8H4N4S4
    4,5,9,10-tetrahydro-4<i>r</i>,10<i>c</i>;5<i>t</i>,9<i>t</i>-diepisulfano-cycloocta[1,2-<i>c</i>;5,6-<i>c</i>']bis[1,2,5]thiadiazole
    —— (4bR,5S,8S,8aR,9R)-5-Methoxymethoxy-8,9-bis-methoxymethoxymethyl-8-methyl-1,3,4,4b,5,6,7,8,8a,9-decahydro-fluoren-2-one 123592-72-3 C22H36O7
    (4bR,5S,8S,8aR,9R)-5-Methoxymethoxy-8,9-bis-methoxymethoxymethyl-8-methyl-1,3,4,4b,5,6,7,8,8a,9-decahydro-fluoren-2-one
    —— <4R-(R*,R*)>-4-<Ethynyl(phenylmethoxy)methyl>-2,2-dimethyl-3-oxazolidinecarboxylic acid 1,1-dimethylethyl ester 129786-71-6 C20H27NO4
    <4R-(R*,R*)>-4-<Ethynyl(phenylmethoxy)methyl>-2,2-dimethyl-3-oxazolidinecarboxylic acid 1,1-dimethylethyl ester
    —— 4,9-dioxo-cyclodecane-1<i>r</i>,2<i>c</i>-dicarboxylic acid 100258-21-7 C12H16O6
    4,9-dioxo-cyclodecane-1<i>r</i>,2<i>c</i>-dicarboxylic acid
    —— 4-Bromo-2-[2-(4-nitro-phenyl)-2,3-dihydro-benzo[b][1,4]thiazepin-4-yl]-phenol 86882-26-0 C21H15BrN2O3S
    4-Bromo-2-[2-(4-nitro-phenyl)-2,3-dihydro-benzo[b][1,4]thiazepin-4-yl]-phenol
    —— <4-(13C)>-cyclohexyl hydroperoxide 133499-73-7 C6H12O2
    <4-(13C)>-cyclohexyl hydroperoxide
    —— 4,4-dicyclohexyl-2,2-dimethyl-3-enal oxime 139745-86-1 C18H31NO
    4,4-dicyclohexyl-2,2-dimethyl-3-enal oxime
    —— (4S)-4-[[(1S,2R,4R)-2-hydroxy-7,7-dimethyl-1-bicyclo[2.2.1]heptanyl]methylsulfanyl]cyclopent-2-en-1-one 135227-12-2 C15H22O2S
    (4S)-4-[[(1S,2R,4R)-2-hydroxy-7,7-dimethyl-1-bicyclo[2.2.1]heptanyl]methylsulfanyl]cyclopent-2-en-1-one
    —— 4-(2-methoxyethoxymethoxy)phenol 129543-57-3 C10H14O4
    4-(2-methoxyethoxymethoxy)phenol
    —— 4-[5-(4-Methoxycarbonyl-butyrylamino)-9,10-dioxo-9,10-dihydro-phenanthren-2-ylcarbamoyl]-butyric Acid Methyl Ester 345631-28-9 C26H26N2O8
    4-[5-(4-Methoxycarbonyl-butyrylamino)-9,10-dioxo-9,10-dihydro-phenanthren-2-ylcarbamoyl]-butyric Acid Methyl Ester
    —— 4-Amidinophenylessigsaeurepiperididhydroiodid 79149-10-3 C14H19N3O*HI
    4-Amidinophenylessigsaeurepiperididhydroiodid
    —— 4-[[2-Nitro-4-(trifluoromethyl)phenyl]diazenyl]phenol 208403-38-7 C13H8F3N3O3
    4-[[2-Nitro-4-(trifluoromethyl)phenyl]diazenyl]phenol
    —— (4-methoxycarbonylphenylethynyl)diphenylphosphine sulfide 1037076-86-0 C22H17O2PS
    (4-methoxycarbonylphenylethynyl)diphenylphosphine sulfide
    —— 4,5-dihydro-5-(1-hydroxy-1-methylethyl)-2,2-bis-(trifluoromethyl)-3(2H)-furanone 123902-76-1 C9H10F6O3
    4,5-dihydro-5-(1-hydroxy-1-methylethyl)-2,2-bis-(trifluoromethyl)-3(2H)-furanone
    —— 4-<Naphthyl-(1)>-2,6-di-tert.-butyl-4-hydroxy-cyclohexadien-(2,5) 95955-07-0 C24H28O2
    4-<Naphthyl-(1)>-2,6-di-tert.-butyl-4-hydroxy-cyclohexadien-(2,5)
    —— 4-cyano-N-[4-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]butyl]benzenesulphonamide 1365040-37-4 C23H25FN4O3S
    4-cyano-N-[4-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]butyl]benzenesulphonamide
    —— 4-({2-[5-cyclopropyl-1-(4-ethoxy-2,6-difluorobenzyl)-4-methyl-1H-pyrazol-3-yl]-5-methoxypyrimidin-4-yl}amino)-N-(2-hydroxyethyl)nicotinamide 1445830-90-9 C29H31F2N7O4
    4-({2-[5-cyclopropyl-1-(4-ethoxy-2,6-difluorobenzyl)-4-methyl-1H-pyrazol-3-yl]-5-methoxypyrimidin-4-yl}amino)-N-(2-hydroxyethyl)nicotinamide
    —— (4R,5R)-4,5-bis[bis(4-chlorophenyl)phosphorylmethyl]-2,2-dimethyl-1,3-dioxolane 1380504-52-8 C31H28Cl4O4P2
    (4R,5R)-4,5-bis[bis(4-chlorophenyl)phosphorylmethyl]-2,2-dimethyl-1,3-dioxolane
    —— (+/-)-4-allyl-4-(3,4-dimethoxyphenyl)-2-<2-(5,5-dimethyl-1,3-dioxan-2-yl)ethyl>cyclohex-2-en-1-one 77783-94-9 C25H34O5
    (+/-)-4-allyl-4-(3,4-dimethoxyphenyl)-2-<2-(5,5-dimethyl-1,3-dioxan-2-yl)ethyl>cyclohex-2-en-1-one
    —— 4-Dipropylarsinooxyimino-heptan 20557-65-7 C13H28AsNO
    4-Dipropylarsinooxyimino-heptan
    —— (4aS,6aS,8S,9S,11aR,11bS)-9-hydroxy-4,4,9,11b-tetramethyldodecahydro-8,11a-methanocyclohepta[a]naphthalene-2,6-dione 136936-82-8 C20H30O3
    (4aS,6aS,8S,9S,11aR,11bS)-9-hydroxy-4,4,9,11b-tetramethyldodecahydro-8,11a-methanocyclohepta[a]naphthalene-2,6-dione
    —— (4R,5R)-(+)-1-(3,4-dimethoxyphenethyl)-5-ethyl-2-oxo-4-piperidineacetic acid ethyl ester 56152-02-4 C21H31NO5
    (4R,5R)-(+)-1-(3,4-dimethoxyphenethyl)-5-ethyl-2-oxo-4-piperidineacetic acid ethyl ester
    —— 4-[5-(5-anilino-3-methyl-3<i>H</i>-[1,3,4]thiadiazol-2-ylidene)-penta-1,3-dienyl]-1-methyl-quinolinium; iodide 102032-00-8 C24H23N4S*I
    4-[5-(5-anilino-3-methyl-3<i>H</i>-[1,3,4]thiadiazol-2-ylidene)-penta-1,3-dienyl]-1-methyl-quinolinium; iodide
    —— 4,4-Difluor-4-nitro-crotonsaeure-amid 16356-18-6 C4H4F2N2O3
    4,4-Difluor-4-nitro-crotonsaeure-amid
    —— 4-((5-thiophen-2-yl)thiophen-3-yl)pyrrolo[1,2-a]quinoxaline 1287776-16-2 C19H12N2S2
    4-((5-thiophen-2-yl)thiophen-3-yl)pyrrolo[1,2-a]quinoxaline
    —— [4-(4-methoxyphenyl)-4-oxo-3-(3-trifluoromethylphenyl)]butyric acid 1159602-26-2 C18H15F3O4
    [4-(4-methoxyphenyl)-4-oxo-3-(3-trifluoromethylphenyl)]butyric acid
    —— 4-methoxyphenyl 3-O-[D7]benzyl-4,6-di-O-acetyl-α-D-glucopyranosyl-(1->2)-3-O-[D7]benzyl-2,4,6-tri-O-acetyl-β-D-glucopyranoside 1075708-72-3 C43H50O17
    4-methoxyphenyl 3-O-[D7]benzyl-4,6-di-O-acetyl-α-D-glucopyranosyl-(1->2)-3-O-[D7]benzyl-2,4,6-tri-O-acetyl-β-D-glucopyranoside
    —— (4-Bromo-phenylsulfanyl)-(2-methoxy-phenyl)-acetonitrile 63215-98-5 C15H12BrNOS
    (4-Bromo-phenylsulfanyl)-(2-methoxy-phenyl)-acetonitrile
    —— 4-benzyloxy-6-phenylhex-5-enol 1056879-11-8 C19H22O2
    4-benzyloxy-6-phenylhex-5-enol
    —— 4-Methyl-2-(trimethylsilyl)cyclohexancarbonsaeure 88946-60-5 C11H22O2Si
    4-Methyl-2-(trimethylsilyl)cyclohexancarbonsaeure
    —— 4,6,7-Trimethoxy-3-[2-methyl-prop-(E)-ylidene]-3H-furo[2,3-b]quinolin-2-one 96838-30-1 C18H19NO5
    4,6,7-Trimethoxy-3-[2-methyl-prop-(E)-ylidene]-3H-furo[2,3-b]quinolin-2-one
    —— (4-cyanophenyl)-(3-chloro-4-hydroxyphenyl)methanol 1042941-75-2 C14H10ClNO2
    (4-cyanophenyl)-(3-chloro-4-hydroxyphenyl)methanol
    —— (4R,5S)-5-tert-Butoxycarbonylamino-4-(tert-butyl-dimethyl-silanyloxy)-6-methyl-heptanoic acid ethyl ester 908129-93-1 C21H43NO5Si
    (4R,5S)-5-tert-Butoxycarbonylamino-4-(tert-butyl-dimethyl-silanyloxy)-6-methyl-heptanoic acid ethyl ester
    —— 4,4'-(((disulfanediylbis(4,1-phenylene))bis(azaneylylidene))bis(methaneylylidene))dibenzonitrile 74705-50-3 C28H18N4S2
    4,4'-(((disulfanediylbis(4,1-phenylene))bis(azaneylylidene))bis(methaneylylidene))dibenzonitrile
    —— 4-(1,3-benzodioxol-5-ylmethyl)-2-phenylthiazole 1167412-63-6 C17H13NO2S
    4-(1,3-benzodioxol-5-ylmethyl)-2-phenylthiazole