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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-Acetoacetyl-furan-2-carbonsaeure 13341-78-1 C9H8O5
    5-Acetoacetyl-furan-2-carbonsaeure
    —— 5-(p-carbomethoxyphenyl)-4-methyl-1-phthalimidopentan-2-one 119770-44-4 C22H21NO5
    5-(p-carbomethoxyphenyl)-4-methyl-1-phthalimidopentan-2-one
    —— (5R,6S)-6-((S)-1-Hydroxy-ethyl)-3-[2-(4-nitro-benzyloxycarbonylamino)-ethylsulfanyl]-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 81036-43-3 C25H24N4O10S2
    (5R,6S)-6-((S)-1-Hydroxy-ethyl)-3-[2-(4-nitro-benzyloxycarbonylamino)-ethylsulfanyl]-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
    —— 5,5-dioxo-5λ6-phenothiazine-3,7-disulfonic acid 99970-40-8 C12H9NO8S3
    5,5-dioxo-5λ6-phenothiazine-3,7-disulfonic acid
    —— 5,6-trimethylene-2',3',5'-tri-O-benzoyluridine 75252-24-3 C33H28N2O9
    5,6-trimethylene-2',3',5'-tri-O-benzoyluridine
    —— 5,7-dibromo-3H-benz[e][1,3,4]oxadiazine-3-carboxylic acid ethyl ester 114165-35-4 C10H8Br2N2O3
    5,7-dibromo-3H-benz[e][1,3,4]oxadiazine-3-carboxylic acid ethyl ester
    —— 5-(4-methoxycarbonylphenylthio)-2(1H)-pyrimidinone 121487-01-2 C12H10N2O3S
    5-(4-methoxycarbonylphenylthio)-2(1H)-pyrimidinone
    —— (5Z,7E,22E)-(1S,3R,24S)-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraene-1,3,24-triol tribenzoate 528600-27-3 C48H52O6
    (5Z,7E,22E)-(1S,3R,24S)-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraene-1,3,24-triol tribenzoate
    —— 5-Phenyl-2-(3,4,5-trimethoxy-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one 77493-77-7 C21H19N3O4
    5-Phenyl-2-(3,4,5-trimethoxy-phenyl)-4H-pyrazolo[1,5-a]pyrimidin-7-one
    —— 5-trifluoroacetoxy-N<sub>b</sub>-methoxycarbonyl-D-tryptophan methyl ester 93272-02-7 C16H15F3N2O6
    5-trifluoroacetoxy-N<sub>b</sub>-methoxycarbonyl-D-tryptophan methyl ester
    —— [5,5'-((1,2-dioxoethane-1,2-diyl)diimino)bis(hept-4-en-3-onato)(2-)]nickel(II) 81316-13-4 C16H22N2NiO4
    [5,5'-((1,2-dioxoethane-1,2-diyl)diimino)bis(hept-4-en-3-onato)(2-)]nickel(II)
    —— (5R,6R)-6-Acetylamino-7-oxo-2-phenyl-3-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 78033-24-6 C14H14N2O5
    (5R,6R)-6-Acetylamino-7-oxo-2-phenyl-3-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid
    —— 5,6,7,8-tetrafluoro-3-(1-(hydrazino)ethylidene)benzopyran-2,4-dione 1137167-21-5 C11H6F4N2O3
    5,6,7,8-tetrafluoro-3-(1-(hydrazino)ethylidene)benzopyran-2,4-dione
    —— 5-(3,5-dimethylisoxazol-4-yl)-1-(pyridin-3-ylmethyl)pyridin-2(1H)-one 1616400-36-2 C16H15N3O2
    5-(3,5-dimethylisoxazol-4-yl)-1-(pyridin-3-ylmethyl)pyridin-2(1H)-one
    —— 5-fluoro-3-(4-methoxyphenyl)-1-[3-(4-morpholin-4-ylpiperidin-1-yl)propyl]-8-propoxy-1H-quinolin-4-one 1228470-75-4 C31H40FN3O4
    5-fluoro-3-(4-methoxyphenyl)-1-[3-(4-morpholin-4-ylpiperidin-1-yl)propyl]-8-propoxy-1H-quinolin-4-one
    —— 5-[4-(2,2-dimethylpropoxy)-3-ethoxyphenyl]-1,3-thiazolidine-2,4-dione 79712-18-8 C16H21NO4S
    5-[4-(2,2-dimethylpropoxy)-3-ethoxyphenyl]-1,3-thiazolidine-2,4-dione
    —— 5-(2,3-dihydroxypropanoylamino)-1-N-[5-[[3-(2,3-dihydroxypropanoylamino)-5-[2,3-dihydroxypropyl(methyl)carbamoyl]-2,4,6-triiodobenzoyl]-methylamino]-3-[2-[[3-(2,3-dihydroxypropanoylamino)-5-[2,3-dihydroxypropyl(methyl)carbamoyl]-2,4,6-triiodobenzoyl]-methylamino]ethyl]pentyl]-3-N-(2,3-dihydroxypropyl)-2,4,6-triiodo-1-N,3-N-dimethylbenzene-1,3-dicarboxamide 1310712-52-7 C55H70I9N9O21
    5-(2,3-dihydroxypropanoylamino)-1-N-[5-[[3-(2,3-dihydroxypropanoylamino)-5-[2,3-dihydroxypropyl(methyl)carbamoyl]-2,4,6-triiodobenzoyl]-methylamino]-3-[2-[[3-(2,3-dihydroxypropanoylamino)-5-[2,3-dihydroxypropyl(methyl)carbamoyl]-2,4,6-triiodobenzoyl]-methylamino]ethyl]pentyl]-3-N-(2,3-dihydroxypropyl)-2,4,6-triiodo-1-N,3-N-dimethylbenzene-1,3-dicarboxamide
    —— 5α-androstane-3β,4α,5,17β-tetraol 3,17-diacetate 19536-16-4 C23H36O6
    5α-androstane-3β,4α,5,17β-tetraol 3,17-diacetate
    —— 5-(Quinolin-2-yl)oxazol-2-amine 846055-69-4 C12H9N3O
    5-(Quinolin-2-yl)oxazol-2-amine
    —— 5-tert-butyl-3-{3-[2-(1-methyl-1H-pyrrol-2-yl)-ethyl]ureido}-thiophene-2-carboxylic acid methyl ester 216590-12-4 C18H25N3O3S
    5-tert-butyl-3-{3-[2-(1-methyl-1H-pyrrol-2-yl)-ethyl]ureido}-thiophene-2-carboxylic acid methyl ester
    —— 5-Chloro-2,3-dihydro-indole-1-carboxylic acid ((1R,3R,5S)-8-methyl-8-aza-bicyclo[3.2.1]oct-3-yl)-amide 117086-72-3 C17H22ClN3O
    5-Chloro-2,3-dihydro-indole-1-carboxylic acid ((1R,3R,5S)-8-methyl-8-aza-bicyclo[3.2.1]oct-3-yl)-amide
    —— 5,5-diphenyl-2,2-di-t-butyl-Δ<sup>3</sup>-1,3,4-selenadiazoline 56956-27-5 C22H28N2Se
    5,5-diphenyl-2,2-di-t-butyl-Δ<sup>3</sup>-1,3,4-selenadiazoline
    —— 5,7-Dimethyl-3-(2-furoyl)amino-isoxazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione 88236-79-7 C12H10N4O5
    5,7-Dimethyl-3-(2-furoyl)amino-isoxazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione
    —— 5-Bromo-4-hydroxy-1-(4-methoxy-phenyl)-4-methyl-pent-1-yn-3-one 99554-84-4 C13H13BrO3
    5-Bromo-4-hydroxy-1-(4-methoxy-phenyl)-4-methyl-pent-1-yn-3-one
    —— (5,6,14,15-bisbenzo-8,12-diaza-1,4-dithia-cyclopentadeca-7,12-diene)copper(I) tetrafluoroborate 1046163-66-9 BF4*C19H20CuN2S2
    (5,6,14,15-bisbenzo-8,12-diaza-1,4-dithia-cyclopentadeca-7,12-diene)copper(I) tetrafluoroborate
    —— [5-(2-ethoxy-phenyl)-[1,3,4]oxadiazol-2-ylsulfanyl]-acetic acid ethyl ester 19982-30-0 C14H16N2O4S
    [5-(2-ethoxy-phenyl)-[1,3,4]oxadiazol-2-ylsulfanyl]-acetic acid ethyl ester
    —— 5,6,7,8-tetrahydro-5-hydroxymethyl-4-methoxymethyl-β-carboline-3-carboxylic acid ethyl ester 108333-40-0 C17H22N2O4
    5,6,7,8-tetrahydro-5-hydroxymethyl-4-methoxymethyl-β-carboline-3-carboxylic acid ethyl ester
    —— 5-cyclohept-1-enyl-5-ethyl-1,3-di-xanthen-9-yl-pyrimidine-2,4,6-trione 17062-43-0 C39H34N2O5
    5-cyclohept-1-enyl-5-ethyl-1,3-di-xanthen-9-yl-pyrimidine-2,4,6-trione
    —— 5-O-benzyl-3-deoxy-D-erythro-hexonic acid, cyclohexylammonium salt 83021-87-8 C6H13N*C13H18O6
    5-O-benzyl-3-deoxy-D-erythro-hexonic acid, cyclohexylammonium salt
    —— 5-exo-hydroxy-7-anti-trimethylsilylbicyclo<2.2.1>heptane-2,6-carbolactone 78824-66-5 C11H18O3Si
    5-exo-hydroxy-7-anti-trimethylsilylbicyclo<2.2.1>heptane-2,6-carbolactone
    —— 5-[4-(3,5-dichlorobenzoyl)-3,4-dihydro-2H-1,4-benzoxazin-6-ylmethylene]-2-thioxo-thiazolidin-4-one 719309-65-6 C19H12Cl2N2O3S2
    5-[4-(3,5-dichlorobenzoyl)-3,4-dihydro-2H-1,4-benzoxazin-6-ylmethylene]-2-thioxo-thiazolidin-4-one
    —— (5S,9R)-1,2,3,4-Tetrafluoro-5-(4-trifluoromethyl-phenyl)-5,7,8,9-tetrahydro-5,9-methano-benzocyclohepten-6-one 89386-68-5 C19H11F7O
    (5S,9R)-1,2,3,4-Tetrafluoro-5-(4-trifluoromethyl-phenyl)-5,7,8,9-tetrahydro-5,9-methano-benzocyclohepten-6-one
    —— (5aR,9aS)-3,3-dimethyloctahydrobenzo[e][1,3]dioxepine 1253913-97-1 C11H20O2
    (5aR,9aS)-3,3-dimethyloctahydrobenzo[e][1,3]dioxepine
    —— 5,7-Dimethoxy-6-(3-methyl-but-2-enoyl)-chromen-2-one 668-18-8 C16H16O5
    5,7-Dimethoxy-6-(3-methyl-but-2-enoyl)-chromen-2-one
    —— 5-morpholin-4-yl-2-propyl-oxazole-4-carboxylic acid butyrylamide 60791-89-1 C15H23N3O4
    5-morpholin-4-yl-2-propyl-oxazole-4-carboxylic acid butyrylamide
    —— 5-Bromo-3,3-dimethyl-dihydro-furan-2-one 82023-25-4 C6H9BrO2
    5-Bromo-3,3-dimethyl-dihydro-furan-2-one
    —— 5-methoxy-2-(4-methoxyphenyl)-1-(phenylsulfonyl)-1H-indole 1190709-10-4 C22H19NO4S
    5-methoxy-2-(4-methoxyphenyl)-1-(phenylsulfonyl)-1H-indole
    —— 5-Butylnonan-5-ylsulfanyl(nonylsulfanyl)methanone 1258511-91-9 C23H46OS2
    5-Butylnonan-5-ylsulfanyl(nonylsulfanyl)methanone
    —— 5-Fluoro-1-[(2S,3R,4R,5S)-3-hydroxy-4-(tetrahydro-pyran-2-yloxy)-5-(tetrahydro-pyran-2-yloxymethyl)-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione 910027-28-0 C19H27FN2O8
    5-Fluoro-1-[(2S,3R,4R,5S)-3-hydroxy-4-(tetrahydro-pyran-2-yloxy)-5-(tetrahydro-pyran-2-yloxymethyl)-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione
    —— 5-[(4-chlorophenyl)methylidene]-2-imino-3-(2-oxochromen-6-yl)-1,3-thiazolidin-4-one 1190114-52-3 C19H11ClN2O3S
    5-[(4-chlorophenyl)methylidene]-2-imino-3-(2-oxochromen-6-yl)-1,3-thiazolidin-4-one
    —— [5-(2-ethoxy-phenyl)-[1,3,4]oxadiazol-2-ylsulfanyl]-acetic acid hydrazide 19982-28-6 C12H14N4O3S
    [5-(2-ethoxy-phenyl)-[1,3,4]oxadiazol-2-ylsulfanyl]-acetic acid hydrazide
    —— [5-(3-chloro-phenylethynyl)-pyridin-2-yl]-morpholin-4-yl-methanone 1600527-94-3 C18H15ClN2O2
    [5-(3-chloro-phenylethynyl)-pyridin-2-yl]-morpholin-4-yl-methanone
    —— 5-[3-benzyl-1-[3-(morpholin-4-yl)propyl]ureidomethyl]-N-(4-t-butoxycarbonylaminothiophen-3-yl)pyridine-2-carboxylic acid amide 1196983-62-6 C31H40N6O5S
    5-[3-benzyl-1-[3-(morpholin-4-yl)propyl]ureidomethyl]-N-(4-t-butoxycarbonylaminothiophen-3-yl)pyridine-2-carboxylic acid amide
    —— 5-Hydroxy-7-methyl-7,8-dihydro-3H-furo[3,4-e]isoindole-1,6-dione 430424-70-7 C11H9NO4
    5-Hydroxy-7-methyl-7,8-dihydro-3H-furo[3,4-e]isoindole-1,6-dione
    —— 5-[2-(3-phenyl-2,5-dihydro-pyrrol-1-yl)-ethyl]-oxazolidin-2-one 21820-83-7 C15H18N2O2
    5-[2-(3-phenyl-2,5-dihydro-pyrrol-1-yl)-ethyl]-oxazolidin-2-one
    —— 5-fluoronicotinaldehyde oxime 1198353-49-9 C6H5FN2O
    5-fluoronicotinaldehyde oxime
    —— (5aR,8S,8aS)-8-Vinyl-decahydro-cyclopenta[b]azepine 133228-32-7 C11H19N
    (5aR,8S,8aS)-8-Vinyl-decahydro-cyclopenta[b]azepine
    —— 5'-(S)-C-(4-(N1-benzoyluracil-5-yl)-1,2,3-triazol-1-yl)methyl-3'-O-(P-(2-cyanoethoxy)-N,N-diisopropylaminophosphinyl)-5'-O-pixylthymidine 1260530-56-0 C52H52N9O10P
    5'-(S)-C-(4-(N1-benzoyluracil-5-yl)-1,2,3-triazol-1-yl)methyl-3'-O-(P-(2-cyanoethoxy)-N,N-diisopropylaminophosphinyl)-5'-O-pixylthymidine
    —— (5S,6S)-methyl 6-hydroxy-8-(4-methoxyphenyl)-1-oxo-7-tosyl-7-azaspiro[4.5]dec-8-ene-9-carboxylate 1373357-78-8 C25H27NO7S
    (5S,6S)-methyl 6-hydroxy-8-(4-methoxyphenyl)-1-oxo-7-tosyl-7-azaspiro[4.5]dec-8-ene-9-carboxylate
    —— 5-[[7-(methylphenylamino)methyl-3-quinolyl]-methyl]thiazolidine-2,4-dione 179068-63-4 C21H19N3O2S
    5-[[7-(methylphenylamino)methyl-3-quinolyl]-methyl]thiazolidine-2,4-dione