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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-oxo-1,2,3,3a,4,5-hexahydrobenzo<e>pyrene 80252-10-4 C20H16O
    5-oxo-1,2,3,3a,4,5-hexahydrobenzo<e>pyrene
    —— 5,8-diethoxy-4(1H)-quinolone 127285-65-8 C13H15NO3
    5,8-diethoxy-4(1H)-quinolone
    —— 5-(1-hydroxyheptyl)furan-2-carboxylic acid 78742-79-7 C12H18O4
    5-(1-hydroxyheptyl)furan-2-carboxylic acid
    —— 5,10-dihydro-5,10-diphenyldibenzo<b,e>phosphorine 5-oxide 80034-71-5 C25H19OP
    5,10-dihydro-5,10-diphenyldibenzo<b,e>phosphorine 5-oxide
    —— 5-methyl-1,3,4-thiadiazolo<3,2-c>quinazolinylium-2-<(aminocarbonyl)cyanomethanide> 111324-38-0 C13H9N5OS
    5-methyl-1,3,4-thiadiazolo<3,2-c>quinazolinylium-2-<(aminocarbonyl)cyanomethanide>
    —— 5-p-Tolyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol 104712-34-7 C12H10N4O
    5-p-Tolyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol
    —— 5-O-benzyl 1-O-ethyl (3R)-3-[tert-butyl(dimethyl)silyl]oxy-2,3-dihydropyrrole-1,5-dicarboxylate 135388-13-5 C21H31NO5Si
    5-O-benzyl 1-O-ethyl (3R)-3-[tert-butyl(dimethyl)silyl]oxy-2,3-dihydropyrrole-1,5-dicarboxylate
    —— 5-[3-(3-ethyl-ureido)-8-methyl-isoquinolin-6-yl]-nicotinic acid methyl ester 1338255-56-3 C20H20N4O3
    5-[3-(3-ethyl-ureido)-8-methyl-isoquinolin-6-yl]-nicotinic acid methyl ester
    —— 5-ethyl-6-methoxy-2-methyl-N-[3-(pyrrolidin-1-ylmethyl)phenyl]pyridin-3-amine 883150-39-8 C20H27N3O
    5-ethyl-6-methoxy-2-methyl-N-[3-(pyrrolidin-1-ylmethyl)phenyl]pyridin-3-amine
    —— 5',3'-O-bis(t-butylsilyl)-2'-O-(t-butyldimethylsilyl)-N<sup>6</sup>-benzoyl-8-propargyloxyadenosine 1337569-58-0 C34H49N5O6Si2
    5',3'-O-bis(t-butylsilyl)-2'-O-(t-butyldimethylsilyl)-N<sup>6</sup>-benzoyl-8-propargyloxyadenosine
    —— 5-bromomethyl-3-(5-nitro-furan-2-yl)-1-phenyl-4,5-dihydro-1H-pyrazole 27301-63-9 C14H12BrN3O3
    5-bromomethyl-3-(5-nitro-furan-2-yl)-1-phenyl-4,5-dihydro-1H-pyrazole
    —— 5-[(4R,5R)-4-Formyl-5-(tetrahydropyran-2-yloxy)-5,6-dihydro-4H-cyclopenta[b]furan-2-yl]pentanoic Acid Methyl Ester 86255-71-2 C19H26O6
    5-[(4R,5R)-4-Formyl-5-(tetrahydropyran-2-yloxy)-5,6-dihydro-4H-cyclopenta[b]furan-2-yl]pentanoic Acid Methyl Ester
    —— 5-(2-Iodo-4,5-dimethoxyphenyl)-2-[5-(2-methylpropyl)-4-phenylimidazol-1-yl]pentanoic acid 918892-52-1 C26H31IN2O4
    5-(2-Iodo-4,5-dimethoxyphenyl)-2-[5-(2-methylpropyl)-4-phenylimidazol-1-yl]pentanoic acid
    —— 5-[(4-Amino-1-hydroxy-naphthalene-2-carbonyl)-amino]-isophthalic acid dimethyl ester 68719-52-8 C21H18N2O6
    5-[(4-Amino-1-hydroxy-naphthalene-2-carbonyl)-amino]-isophthalic acid dimethyl ester
    —— 5,8-dimethoxy-2-(propylamino)chromen-4-one;hydrochloride 79226-16-7 C14H17NO4*ClH
    5,8-dimethoxy-2-(propylamino)chromen-4-one;hydrochloride
    —— 5,7-Dibrom-8-(4-nitro-benzoyloxy)-chinaldin 93191-63-0 C17H10Br2N2O4
    5,7-Dibrom-8-(4-nitro-benzoyloxy)-chinaldin
    —— (5-ethyl-2,3-dimethyl-1H-indol-1-yl)(2-iodophenyl)methanone 1370410-13-1 C19H18INO
    (5-ethyl-2,3-dimethyl-1H-indol-1-yl)(2-iodophenyl)methanone
    —— 5-bromo-5'-(2-(5-bromo-1-(4-methylbenzyl)-2-oxoindolin-3-ylidene)hydrazinyl)-1-(4-methylbenzyl)-4'-nitro-1',2'-dihydrospiro[indoline-3,3'-pyrazol]-2-one 1431790-17-8 C34H27Br2N7O4
    5-bromo-5'-(2-(5-bromo-1-(4-methylbenzyl)-2-oxoindolin-3-ylidene)hydrazinyl)-1-(4-methylbenzyl)-4'-nitro-1',2'-dihydrospiro[indoline-3,3'-pyrazol]-2-one
    —— 5-Thiocyanato-methylbenz-<2,1,3>-thiadiazol 93049-53-7 C8H5N3S2
    5-Thiocyanato-methylbenz-<2,1,3>-thiadiazol
    —— 5-Chlor-2,6-diamino-4-anilino-pyrimidin 90793-27-4 C10H10ClN5
    5-Chlor-2,6-diamino-4-anilino-pyrimidin
    —— 5-Phenyl-1-<3,4-methylendioxy-phenyl>-penten-(1)-on-(3) 95125-02-3 C18H16O3
    5-Phenyl-1-<3,4-methylendioxy-phenyl>-penten-(1)-on-(3)
    —— 5'-Methyl-17β-hydroxy-thieno-<4'.3'.2'-4.5.6>-19-nor-androsten-(5)-on-(3) 3756-29-4 C20H26O2S
    5'-Methyl-17β-hydroxy-thieno-<4'.3'.2'-4.5.6>-19-nor-androsten-(5)-on-(3)
    —— 5-n-butyl-1-<(4-carbomethoxyphenyl)methyl>imidazole-2-carboxaldehyde 148674-48-0 C17H20N2O3
    5-n-butyl-1-<(4-carbomethoxyphenyl)methyl>imidazole-2-carboxaldehyde
    —— 5(6)-(L-Isoleucyl)amino-2-methoxycarbonyl-aminobenzimidazole 125705-78-4 C15H21N5O3
    5(6)-(L-Isoleucyl)amino-2-methoxycarbonyl-aminobenzimidazole
    —— 5,11-Diethyl-4,6,8,10,12-pentamethyl-2,2-bis(2,3,4,5,6-pentafluorophenyl)-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaene 1183676-14-3 C30H25BF10N2
    5,11-Diethyl-4,6,8,10,12-pentamethyl-2,2-bis(2,3,4,5,6-pentafluorophenyl)-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaene
    —— 5-[3-(2-Dimethylamino-ethylamino)-5-phenyl-1H-pyrazol-4-yl]-1,3-diethyl-1,3-dihydro-benzoimidazol-2-one 459212-84-1 C24H30N6O
    5-[3-(2-Dimethylamino-ethylamino)-5-phenyl-1H-pyrazol-4-yl]-1,3-diethyl-1,3-dihydro-benzoimidazol-2-one
    —— 5-Butyl-1,3-dimethyl-7,8-bis(methoxycarbonyl)-1,2,3,4,9,10-hexahydro-10-(methoxycarbonyl)methylene-5H<1,3>-diazepino<1,2-e>purine-2,4,9-trione 135574-49-1 C22H25N5O9
    5-Butyl-1,3-dimethyl-7,8-bis(methoxycarbonyl)-1,2,3,4,9,10-hexahydro-10-(methoxycarbonyl)methylene-5H<1,3>-diazepino<1,2-e>purine-2,4,9-trione
    —— (5aS,6aR,12aS,13aR)-4,6a-Dimethyl-8-methylene-5,5a,6a,7,8,9,10,12a,13,13a-decahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cyclooctene-2,11-dione 205865-00-5 C17H22O5
    (5aS,6aR,12aS,13aR)-4,6a-Dimethyl-8-methylene-5,5a,6a,7,8,9,10,12a,13,13a-decahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cyclooctene-2,11-dione
    —— 5-Hexyl-2-methyl-4,5-dihydro-furan-3-carboxylic acid methyl ester 133364-54-2 C13H22O3
    5-Hexyl-2-methyl-4,5-dihydro-furan-3-carboxylic acid methyl ester
    —— 5-chloro-6-(2-chloro-6-fluorophenyl)-7-[N-(2,2,2-trifluoroethyl)-N-(2-methylpropyl)-amino]-[1,2,4]triazolo[1,5-a]pyrimidine 214634-10-3 C17H15Cl2F4N5
    5-chloro-6-(2-chloro-6-fluorophenyl)-7-[N-(2,2,2-trifluoroethyl)-N-(2-methylpropyl)-amino]-[1,2,4]triazolo[1,5-a]pyrimidine
    —— 5-Bromothiophene-3-sulfonyl chloride 1225373-59-0 C4H2BrClO2S2
    5-Bromothiophene-3-sulfonyl chloride
    —— (5R,7S,10S)-7α,16,7β,20-diepoxycleistantha-8,11,13-trien-3-one 86533-32-6 C20H24O3
    (5R,7S,10S)-7α,16,7β,20-diepoxycleistantha-8,11,13-trien-3-one
    —— (5-{3-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)-phenoxy]-propoxy}-indol-1-yl)-acetic acid 853651-75-9 C22H21N3O5
    (5-{3-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)-phenoxy]-propoxy}-indol-1-yl)-acetic acid
    —— 5-(1-methyl-allylsulfanyl)-pent-1-ene 73552-95-1 C9H16S
    5-(1-methyl-allylsulfanyl)-pent-1-ene
    —— 5-(((1-methyl-6-oxo-2,3,4,6-tetrahydro-1H-pyrimido[1,6-a]pyrimidin-8-yl)oxy)methyl)-2-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzonitrile 1420367-25-4 C22H18F3N5O3
    5-(((1-methyl-6-oxo-2,3,4,6-tetrahydro-1H-pyrimido[1,6-a]pyrimidin-8-yl)oxy)methyl)-2-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzonitrile
    —— 5,5-bis(phenylsulfonyl)-2-methyl-1-trifluoroacetyloxy-2-pentene 259879-65-7 C20H19F3O6S2
    5,5-bis(phenylsulfonyl)-2-methyl-1-trifluoroacetyloxy-2-pentene
    —— 5-Chloro-7-dimethylaminomethyl-3-methyl-benzo[d]isoxazol-6-ol 136741-84-9 C11H13ClN2O2
    5-Chloro-7-dimethylaminomethyl-3-methyl-benzo[d]isoxazol-6-ol
    —— 5,6-dihydro-3,4-dimethyl-6-phenylpyran-2-one 54814-70-9 C13H14O2
    5,6-dihydro-3,4-dimethyl-6-phenylpyran-2-one
    —— 5-(2-bromophenyl)-2-(pyridin-2-yl)-4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine 1247884-95-2 C17H14BrN3O
    5-(2-bromophenyl)-2-(pyridin-2-yl)-4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine
    —— 5-bromo-6-[1-(2-methylpropyl)-1H-pyrazol-4-yl]-8-{[4-(piperidin-4-yl)phenyl]amino}-1,2-dihydro-2,7-naphthyridin-1-one 1175546-28-7 C26H29BrN6O
    5-bromo-6-[1-(2-methylpropyl)-1H-pyrazol-4-yl]-8-{[4-(piperidin-4-yl)phenyl]amino}-1,2-dihydro-2,7-naphthyridin-1-one
    —— 5-(3,4-Diethoxyphenyl)-1,2-dihydro-1,2,4-triazole-3-thione 1097006-59-1 C12H15N3O2S
    5-(3,4-Diethoxyphenyl)-1,2-dihydro-1,2,4-triazole-3-thione
    —— 5-ethyl 3-methoxycarbonyl 4-piperonyl 5-methyl isoxazoline N-oxide 116471-79-5 C15H17NO6
    5-ethyl 3-methoxycarbonyl 4-piperonyl 5-methyl isoxazoline N-oxide
    —— 5,5'-di-tert-butyl-2,2'-dimethyl-3,3'-bis(hydroxymethyl)diphenylethane 132397-71-8 C26H38O2
    5,5'-di-tert-butyl-2,2'-dimethyl-3,3'-bis(hydroxymethyl)diphenylethane
    —— 5-(1,2-bis-methoxycarbonyl-ethyl)-1,6-dioxa-4,9-diaza-5λ<sup>5</sup>-phospha-spiro[4.4]nonane 343618-86-0 C10H19N2O6P
    5-(1,2-bis-methoxycarbonyl-ethyl)-1,6-dioxa-4,9-diaza-5λ<sup>5</sup>-phospha-spiro[4.4]nonane
    —— 5-(2-chloro-benzyl)-7-hydroxy-6,7-dihydro-thieno[3,2-<i>c</i>]pyridinium; bromide 73099-84-0 Br*C14H13ClNOS
    5-(2-chloro-benzyl)-7-hydroxy-6,7-dihydro-thieno[3,2-<i>c</i>]pyridinium; bromide
    —— 5,7-dihydro-3-(5-methyl-2-pyridyl)-5,5,7,7-tetramethyl-furo[3,4-e]-as-triazine 77179-62-5 C15H18N4O
    5,7-dihydro-3-(5-methyl-2-pyridyl)-5,5,7,7-tetramethyl-furo[3,4-e]-as-triazine
    —— 5,6,8-Trichlor-7-methyl-chinoxalin 19853-68-0 C9H5Cl3N2
    5,6,8-Trichlor-7-methyl-chinoxalin
    —— 5-chloro-N-(3-chloro-4-fluorophenyl)pyrazolo[1,5-a]pyrimidin-7-amine 1393882-22-8 C12H6BrCl2FN4
    5-chloro-N-(3-chloro-4-fluorophenyl)pyrazolo[1,5-a]pyrimidin-7-amine
    —— 5-[3-[1-(3,4-dimethoxyphenyl)propan-2-ylamino]-2-hydroxypropoxy]-8-(2-methoxyethoxy)-3,4-dihydro-1H-quinolin-2-one 65008-89-1 C26H36N2O7
    5-[3-[1-(3,4-dimethoxyphenyl)propan-2-ylamino]-2-hydroxypropoxy]-8-(2-methoxyethoxy)-3,4-dihydro-1H-quinolin-2-one
    —— 5-Oxo-3,4-dimethyl-hexansaeurenitril 16728-71-5 C8H13NO
    5-Oxo-3,4-dimethyl-hexansaeurenitril