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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-methyl-N-pentyl-2-(trifluoromethyl)furan-3-carboxamide 457056-81-4 C12H16F3NO2
    5-methyl-N-pentyl-2-(trifluoromethyl)furan-3-carboxamide
    —— 5-(5-tert-butyldimethylsiloxy-4,4-dimethylpentyl)-5-methyl-2-cyclopenten-1-one 243458-62-0 C19H36O2Si
    5-(5-tert-butyldimethylsiloxy-4,4-dimethylpentyl)-5-methyl-2-cyclopenten-1-one
    —— 5,6-dihydro-7-(methylthio)benzimidazo[1,2-b]benzo[f]isoquinoline 528877-92-1 C20H16N2S
    5,6-dihydro-7-(methylthio)benzimidazo[1,2-b]benzo[f]isoquinoline
    —— 5,8-Dihydroxy-2,3,6-trichloro-1,4-naphthoquinone 38592-85-7 C10H3Cl3O4
    5,8-Dihydroxy-2,3,6-trichloro-1,4-naphthoquinone
    —— 5-(dimethylamino)-N-(4-nitrososulfanylpentyl)naphthalene-1-sulfonamide 359699-80-2 C17H23N3O3S2
    5-(dimethylamino)-N-(4-nitrososulfanylpentyl)naphthalene-1-sulfonamide
    —— 5,6-dihydro-1-<2-(indol-3-yl)ethyl>-4-methoxy-6-phenylpyridin-2(1H)-one 154592-95-7 C22H22N2O2
    5,6-dihydro-1-<2-(indol-3-yl)ethyl>-4-methoxy-6-phenylpyridin-2(1H)-one
    —— (5R,6R,7S,8R)-6,7,8-tris(phenylmethoxy)-5-(phenylmethoxymethyl)-1,4-dioxaspiro[2.5]octane 131603-38-8 C35H36O6
    (5R,6R,7S,8R)-6,7,8-tris(phenylmethoxy)-5-(phenylmethoxymethyl)-1,4-dioxaspiro[2.5]octane
    —— 5-(1-Benzyloxymethoxy-1-methyl-ethyl)-2,8-dimethyl-non-7-enoic acid ethyl ester 154138-77-9 C24H38O4
    5-(1-Benzyloxymethoxy-1-methyl-ethyl)-2,8-dimethyl-non-7-enoic acid ethyl ester
    —— 5-[(3,4-Dimethoxy-2-methoxymethoxy-phenyl)-methoxy-methyl]-1-methyl-2-phenylsulfanyl-1H-imidazole 171780-61-3 C22H26N2O5S
    5-[(3,4-Dimethoxy-2-methoxymethoxy-phenyl)-methoxy-methyl]-1-methyl-2-phenylsulfanyl-1H-imidazole
    —— 5,9,17,21,26,30-Hexakis-(4-methylphenyl)sulfonyl-5,9,17,21,26,30-hexazatetracyclo[11.11.7.13,23.111,15]tritriaconta-1(24),2,11,13,15(33),23(32)-hexaene 109774-74-5 C69H78N6O12S6
    5,9,17,21,26,30-Hexakis-(4-methylphenyl)sulfonyl-5,9,17,21,26,30-hexazatetracyclo[11.11.7.13,23.111,15]tritriaconta-1(24),2,11,13,15(33),23(32)-hexaene
    —— (5'R,6'R,7'S)-7'-hydroxymethyl-5'-methylspiro[cyclohexane-1,2'-[3]oxa[1]azabicyclo[4.2.0]octan]-8-one 212472-61-2 C13H21NO3
    (5'R,6'R,7'S)-7'-hydroxymethyl-5'-methylspiro[cyclohexane-1,2'-[3]oxa[1]azabicyclo[4.2.0]octan]-8-one
    —— 5-isopropyl-2-methyl-azulene 114622-44-5 C14H16
    5-isopropyl-2-methyl-azulene
    —— 5-Benzyloxymethyl-3,3-dimethoxy-dihydro-furan-2-one 146656-12-4 C14H18O5
    5-Benzyloxymethyl-3,3-dimethoxy-dihydro-furan-2-one
    —— (5Z)-5-[(5-butanoyl-1H-pyrrol-2-yl)methylidene]-3,4-diethylpyrrol-2-one 389832-94-4 C17H22N2O2
    (5Z)-5-[(5-butanoyl-1H-pyrrol-2-yl)methylidene]-3,4-diethylpyrrol-2-one
    —— 5,5,5-trifluoro-4-methyl-2-oxopentanoic acid 121819-63-4 C6H7F3O3
    5,5,5-trifluoro-4-methyl-2-oxopentanoic acid
    —— 5-(benzyloxycarbonylamino)-3,4-O-isopropylidene-5,6-dideoxy-D-allose dimethylacetal 188242-61-7 C19H29NO7
    5-(benzyloxycarbonylamino)-3,4-O-isopropylidene-5,6-dideoxy-D-allose dimethylacetal
    —— 5,6-dihydro-7H-cyclohepta[6,5-a]azulen-7-one 477760-80-8 C19H14O
    5,6-dihydro-7H-cyclohepta[6,5-a]azulen-7-one
    —— (5aR,9aR)-2-bromo-7-oxo-5a,6,8,9-tetrahydrodibenzofuran-9a-carbonitrile 1334171-20-8 C13H10BrNO2
    (5aR,9aR)-2-bromo-7-oxo-5a,6,8,9-tetrahydrodibenzofuran-9a-carbonitrile
    —— 5-Hexyl-8a-hydroxy-8-(hydroxymethyl)-1,2,5,6,7,8-hexahydroindolizin-3-one 252041-55-7 C15H27NO3
    5-Hexyl-8a-hydroxy-8-(hydroxymethyl)-1,2,5,6,7,8-hexahydroindolizin-3-one
    —— 5-amino-4-(1'-amino-2',2'-dicyanovinyl)-1-(4'-tolyl)imidazole 499983-00-5 C14H12N6
    5-amino-4-(1'-amino-2',2'-dicyanovinyl)-1-(4'-tolyl)imidazole
    —— 5-(4-Chloro-2-nitro-phenyl)-1H-pyrazole-3-carboxylic acid ethyl ester 406500-08-1 C12H10ClN3O4
    5-(4-Chloro-2-nitro-phenyl)-1H-pyrazole-3-carboxylic acid ethyl ester
    —— 5-methyl-2,6-<di-(2-hydroxyethoxy)methyl>-1,2,6-thiadiazine-3(2H)-one 1,1-dioxide 161146-75-4 C10H18N2O7S
    5-methyl-2,6-<di-(2-hydroxyethoxy)methyl>-1,2,6-thiadiazine-3(2H)-one 1,1-dioxide
    —— (+/-)-5-benzyloxymethyl-2-tert-butyldimethylsilyloxy-5-(2-propenyl)cyclohexa-1,3-diene 436145-99-2 C23H34O2Si
    (+/-)-5-benzyloxymethyl-2-tert-butyldimethylsilyloxy-5-(2-propenyl)cyclohexa-1,3-diene
    —— 5-aldehydo-(1S)-1-C-(5-N-benzyloxymethyl-4-methoxypyrrolo[3,2-d]pyrimidin-7-yl)-N-tert-butoxycarbonyl-1,4-dideoxy-1,4-imino-2,3-O-isopropylidene-D-ribitol 433217-45-9 C28H34N4O7
    5-aldehydo-(1S)-1-C-(5-N-benzyloxymethyl-4-methoxypyrrolo[3,2-d]pyrimidin-7-yl)-N-tert-butoxycarbonyl-1,4-dideoxy-1,4-imino-2,3-O-isopropylidene-D-ribitol
    —— 5'-O-(monomethoxytriphenylmethyl)-5-ethyl-4'-thio-2'-deoxyuridine 175470-98-1 C31H32N2O5S
    5'-O-(monomethoxytriphenylmethyl)-5-ethyl-4'-thio-2'-deoxyuridine
    —— (5R,16S)-pentacyclo[18.2.2.29,12.14,16.15,15]octacosa-1(23),4(25),9(28),10,12(27),15(26),20(24),21-octaene-6,17-dione 141902-96-7 C28H28O2
    (5R,16S)-pentacyclo[18.2.2.29,12.14,16.15,15]octacosa-1(23),4(25),9(28),10,12(27),15(26),20(24),21-octaene-6,17-dione
    —— (5-methyl-2-phenethyl-oxazol-4-yl)-acetic acid methyl ester 401791-21-7 C15H17NO3
    (5-methyl-2-phenethyl-oxazol-4-yl)-acetic acid methyl ester
    —— (5S,6R,9R)-6-[(E)-7-[tert-butyl(dimethyl)silyl]oxyhept-1-enyl]-8-[[tert-butyl(diphenyl)silyl]oxymethyl]-4-(methoxymethoxy)-9-methyl-3-phenylmethoxy-1-oxaspiro[4.5]deca-3,7-dien-2-one 144446-45-7 C49H68O7Si2
    (5S,6R,9R)-6-[(E)-7-[tert-butyl(dimethyl)silyl]oxyhept-1-enyl]-8-[[tert-butyl(diphenyl)silyl]oxymethyl]-4-(methoxymethoxy)-9-methyl-3-phenylmethoxy-1-oxaspiro[4.5]deca-3,7-dien-2-one
    —— (5R,5'S,8'R,9'S,10'S,13'S,14'S)-3-(2-hydroxy-3-pyrrolidin-1-ylpropyl)-10',13'-dimethylspiro[1,3-oxazolidine-5,3'-2,4,5,6,7,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthrene]-2,17'-dione 400604-79-7 C28H44N2O4
    (5R,5'S,8'R,9'S,10'S,13'S,14'S)-3-(2-hydroxy-3-pyrrolidin-1-ylpropyl)-10',13'-dimethylspiro[1,3-oxazolidine-5,3'-2,4,5,6,7,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthrene]-2,17'-dione
    —— 5-hydroxy-1-[2-(1H-indol-3-yl)ethyl]-5-methyl-1,5-dihydropyrrol-2-one 169170-59-6 C15H16N2O2
    5-hydroxy-1-[2-(1H-indol-3-yl)ethyl]-5-methyl-1,5-dihydropyrrol-2-one
    —— 5H-Pyrrolo<1,2-a>imidazol 251-74-1 C6H6N2
    5H-Pyrrolo<1,2-a>imidazol
    —— (5R)-5-ethenyl-2,5-dimethyl-1,4-dioxan-2-ol 219526-01-9 C8H14O3
    (5R)-5-ethenyl-2,5-dimethyl-1,4-dioxan-2-ol
    —— (5R)-8-methyl-5-(2-methyl-1,3-dioxolan-2-yl)-7-nonen-2-on 90395-04-3 C14H24O3
    (5R)-8-methyl-5-(2-methyl-1,3-dioxolan-2-yl)-7-nonen-2-on
    —— 5-hydroxy-5-trimethylsilanylethynyl-cyclohex-1-enecarboxylic acid methyl ester 156826-19-6 C13H20O3Si
    5-hydroxy-5-trimethylsilanylethynyl-cyclohex-1-enecarboxylic acid methyl ester
    —— 5-[2-(1,3-Dioxolan-2-yl)ethylsulfonyl]-1-phenyltetrazole 232942-66-4 C12H14N4O4S
    5-[2-(1,3-Dioxolan-2-yl)ethylsulfonyl]-1-phenyltetrazole
    —— (5R,7S,13S)-13-Methoxy-1,6,8-trioxa-dispiro[4.1.5.3]pentadecane 180478-19-7 C13H22O4
    (5R,7S,13S)-13-Methoxy-1,6,8-trioxa-dispiro[4.1.5.3]pentadecane
    —— 5-(8,8-dibromo-7-octenyl)-1,3-benzodioxole 356519-73-8 C15H18Br2O2
    5-(8,8-dibromo-7-octenyl)-1,3-benzodioxole
    —— 5-Bromo-2-(2,2-dimethoxy-ethoxy)-phenol 207518-78-3 C10H13BrO4
    5-Bromo-2-(2,2-dimethoxy-ethoxy)-phenol
    —— [5-(2-Benzylindazol-3-yl)furan-2-yl]methanol 387868-15-7 C19H16N2O2
    [5-(2-Benzylindazol-3-yl)furan-2-yl]methanol
    —— (5Z,9E)-(1R,11S,12S)-9-Isopropyl-2-methylene-14-oxo-13,15-dioxa-tricyclo[10.3.2.0<sup>1,11</sup>]heptadeca-5,9-diene-6-carboxylic acid methyl ester 263359-88-2 C21H28O5
    (5Z,9E)-(1R,11S,12S)-9-Isopropyl-2-methylene-14-oxo-13,15-dioxa-tricyclo[10.3.2.0<sup>1,11</sup>]heptadeca-5,9-diene-6-carboxylic acid methyl ester
    —— 5-bromo-2-iodo-4-propyloxyphenyl acetate 186134-30-5 C11H12BrIO3
    5-bromo-2-iodo-4-propyloxyphenyl acetate
    —— (5S,6R)-6-[2-(tert-butyldimethylsilyloxy)ethyl]-5-(methoxymethoxy)piperidin-2-one 616890-49-4 C15H31NO4Si
    (5S,6R)-6-[2-(tert-butyldimethylsilyloxy)ethyl]-5-(methoxymethoxy)piperidin-2-one
    —— 5-(2-furyl)-3-(2-thienyl)-6-thioethoxycyclohex-2-en-1-thione 146016-70-8 C17H16O2S3
    5-(2-furyl)-3-(2-thienyl)-6-thioethoxycyclohex-2-en-1-thione
    —— 5'-Amino-6'-(4-chloro-benzoyl)-[1,1';3',1'']terphenyl-2',4'-dicarbonitrile 208240-22-6 C27H16ClN3O
    5'-Amino-6'-(4-chloro-benzoyl)-[1,1';3',1'']terphenyl-2',4'-dicarbonitrile
    —— 5-bromo-2-hydroxy-3-iodo-4-phenoxyacetophenone 145489-48-1 C14H10BrIO3
    5-bromo-2-hydroxy-3-iodo-4-phenoxyacetophenone
    —— 5-acetamido-11,17,23-tri-tert-butyl-25,26,27,28-tetrakis(2-ethoxyethoxy)calix<4>arene 161563-16-2 C58H83NO9
    5-acetamido-11,17,23-tri-tert-butyl-25,26,27,28-tetrakis(2-ethoxyethoxy)calix<4>arene
    —— 5-chloro-6H-pyrido[2,3-g]quinoxalin-9-one 1346840-60-5 C11H6ClN3O
    5-chloro-6H-pyrido[2,3-g]quinoxalin-9-one
    —— 5-chloro-9-oxo-6,9-dihydropyrido[2,3-g]quinoxaline —— C11H6ClN3O
    5-chloro-9-oxo-6,9-dihydropyrido[2,3-g]quinoxaline
    —— 5-hydroxy-6,6,8bβ-trimethyl-2aβ,6,7,8,8aβ,8b-hexahydro-2H-naphtho<1,8-bc>furan-2,4(3H)-dione 144646-72-0 C14H18O4
    5-hydroxy-6,6,8bβ-trimethyl-2aβ,6,7,8,8aβ,8b-hexahydro-2H-naphtho<1,8-bc>furan-2,4(3H)-dione
    —— 5-O-tert-butyl 1-O-ethyl 2-methyl-3-oxo-4-(triphenyl-lambda5-phosphanylidene)pentanedioate 145237-19-0 C30H33O5P
    5-O-tert-butyl 1-O-ethyl 2-methyl-3-oxo-4-(triphenyl-lambda5-phosphanylidene)pentanedioate