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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5β-Acetylaminomethyl-cholestan-3-on-aethylenketal 122316-17-0 C32H55NO3
    5β-Acetylaminomethyl-cholestan-3-on-aethylenketal
    —— 5,7,3'-Trihydroxy-4'-methoxy-2-carboxyisoflavon 94574-60-4 C17H12O8
    5,7,3'-Trihydroxy-4'-methoxy-2-carboxyisoflavon
    —— 5-<4-Acetamino-phenylmercapto>-furfurol-oxim 93140-86-4 C13H12N2O3S
    5-<4-Acetamino-phenylmercapto>-furfurol-oxim
    —— 5,7,4'-Tribenzyl-3,4-isopropyliden-pelargidandiol 106278-66-4 C39H36O6
    5,7,4'-Tribenzyl-3,4-isopropyliden-pelargidandiol
    —— 5,5,7,8-tetramethyl-3-phenyl-2-oxa-3-aza-bicyclo[2.2.2]oct-7-en-6-one 68070-79-1 C16H19NO2
    5,5,7,8-tetramethyl-3-phenyl-2-oxa-3-aza-bicyclo[2.2.2]oct-7-en-6-one
    —— (5E,7E,9E)-N,N-dimethyl-10 bromo-4,11-dihydroxynonadeca-5,7,9-trienamide 114730-41-5 C21H36BrNO3
    (5E,7E,9E)-N,N-dimethyl-10 bromo-4,11-dihydroxynonadeca-5,7,9-trienamide
    —— 5-Chlor-1-cyclopropyl-1,4-dihydro-4-oxo-3-chinolincarbonsaeure-ethylester 104599-95-3 C15H14ClNO3
    5-Chlor-1-cyclopropyl-1,4-dihydro-4-oxo-3-chinolincarbonsaeure-ethylester
    —— 5-Methyl-6-methylene-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiine-2-thione 107398-82-3 C7H6S5
    5-Methyl-6-methylene-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiine-2-thione
    —— 5-(2-Diaethylamino-propyl)-3-phenyl-1.2.4-oxdiazol 92703-53-2 C15H21N3O
    5-(2-Diaethylamino-propyl)-3-phenyl-1.2.4-oxdiazol
    —— 5,11-epoxy-eudesman-3-one 97588-60-8 C15H24O2
    5,11-epoxy-eudesman-3-one
    —— 5,8-Bis-methylamino-9,10-dioxo-9,10-dihydro-anthracene-2-carboxylic acid 19591-41-4 C17H14N2O4
    5,8-Bis-methylamino-9,10-dioxo-9,10-dihydro-anthracene-2-carboxylic acid
    —— 5-(4-Methoxyphenyl)-3-oxo-2-phenyl-[1,3]thiazolo[3,2-a]pyridine-8-carbonitrile 1291099-60-9 C21H14N2O2S
    5-(4-Methoxyphenyl)-3-oxo-2-phenyl-[1,3]thiazolo[3,2-a]pyridine-8-carbonitrile
    —— 5-nitro-2-(4-nitrophenyl)-1-methylbenzimidazole 106167-15-1 C14H10N4O4
    5-nitro-2-(4-nitrophenyl)-1-methylbenzimidazole
    —— 5-Carbobenzoxyamino-4,6-dibenzylamino-pyrimidin 21266-39-7 C26H25N5O2
    5-Carbobenzoxyamino-4,6-dibenzylamino-pyrimidin
    —— 5-hydroxy-4,4-dimethyl-3-piperidin-1-yl-pentan-2-one 73968-05-5 C12H23NO2
    5-hydroxy-4,4-dimethyl-3-piperidin-1-yl-pentan-2-one
    —— 5-Methyl-4-isothiazolin-3-on-1,1-dioxid 31028-44-1 C4H5NO3S
    5-Methyl-4-isothiazolin-3-on-1,1-dioxid
    —— 5-(benzyloxy)-2,3,3a,4,5,7a-hexahydro-(3aα,5α,7aα)-benzofuran 141612-58-0 C15H18O2
    5-(benzyloxy)-2,3,3a,4,5,7a-hexahydro-(3aα,5α,7aα)-benzofuran
    —— (5E)-4-[1,1-dicyano-1-(tert-butyldimethylsilyloxy)methyl]-2,7-dimethyl-3-[N-(2,4,6-trimethylbenzenesulfonyl)amino]-5-octene 1439462-19-7 C28H45N3O3SSi
    (5E)-4-[1,1-dicyano-1-(tert-butyldimethylsilyloxy)methyl]-2,7-dimethyl-3-[N-(2,4,6-trimethylbenzenesulfonyl)amino]-5-octene
    —— 5(S)-amino-4(S)-hydroxy-2(S),7(S)-diisopropyl-8-[4-methoxy-3-(3-methoxy-propyloxy)-phenyl]-octanoic acid [N-(4(R)-2-oxothiazolidin-4-yl-methyl)] amide hydrochloride 1073623-72-9 C29H49N3O6S*ClH
    5(S)-amino-4(S)-hydroxy-2(S),7(S)-diisopropyl-8-[4-methoxy-3-(3-methoxy-propyloxy)-phenyl]-octanoic acid [N-(4(R)-2-oxothiazolidin-4-yl-methyl)] amide hydrochloride
    —— 5-formyl-furan-2-carboxylic acid-O-2,3,4-trichlorophenyl ester 685903-77-9 C12H5Cl3O4
    5-formyl-furan-2-carboxylic acid-O-2,3,4-trichlorophenyl ester
    —— 5-[(3S)-3,7-dimethyloct-6-en-1-yl]-2,6-dimethoxy-3-methylpyrimidin-4(3H)-one 1201937-45-2 C17H28N2O3
    5-[(3S)-3,7-dimethyloct-6-en-1-yl]-2,6-dimethoxy-3-methylpyrimidin-4(3H)-one
    —— 5-chlorothiophene-2-sulfonic acid [4-(2-(diethylamino)ethoxy)-[2,2']bipyridinyl-6-ylmethyl]amide 1379598-80-7 C21H25ClN4O3S2
    5-chlorothiophene-2-sulfonic acid [4-(2-(diethylamino)ethoxy)-[2,2']bipyridinyl-6-ylmethyl]amide
    —— 5-<2-Nitro-1-(5methylfur-2-yl)aethyl>barbitursaeure 59558-47-3 C11H11N3O6
    5-<2-Nitro-1-(5methylfur-2-yl)aethyl>barbitursaeure
    —— (5R,6S)-3-[2-(Difluoromethylthiomethyl)-1,4,5,6-tetrahydropyrimidin-5-yl]-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 142775-04-0 C15H19F2N3O4S
    (5R,6S)-3-[2-(Difluoromethylthiomethyl)-1,4,5,6-tetrahydropyrimidin-5-yl]-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— 5-[β-(1H-imidazol-1-yl)ethoxy]indan-1-carboxylic acid hydrochloride 105920-70-5 C15H16N2O3*ClH
    5-[β-(1H-imidazol-1-yl)ethoxy]indan-1-carboxylic acid hydrochloride
    —— 5-chloro-2-[(2R)-2-(4-chlorophenyl)-4-[(2S)-2-hydroxy-2-(6-methoxypyridin-3-yl)propyl]piperazin-1-yl]benzonitrile 1427713-32-3 C26H26Cl2N4O2
    5-chloro-2-[(2R)-2-(4-chlorophenyl)-4-[(2S)-2-hydroxy-2-(6-methoxypyridin-3-yl)propyl]piperazin-1-yl]benzonitrile
    —— 5-(3-chlorophenyl)-2-(pyrazin-2-yl)-5,6,7,8-tetrahydro-4H-oxazolo[4,5-c]azepine 1247880-53-0 C17H15ClN4O
    5-(3-chlorophenyl)-2-(pyrazin-2-yl)-5,6,7,8-tetrahydro-4H-oxazolo[4,5-c]azepine
    —— 5α-Hydroxy-ergostadien-(7.22)-on-(3) 19141-77-6 C28H44O2
    5α-Hydroxy-ergostadien-(7.22)-on-(3)
    —— 5-[1-(5-Chloro-benzooxazol-2-yl)-1-phenyl-meth-(E)-ylidene]-4-hydroxy-3-phenyl-5H-furan-2-one 135275-46-6 C24H14ClNO4
    5-[1-(5-Chloro-benzooxazol-2-yl)-1-phenyl-meth-(E)-ylidene]-4-hydroxy-3-phenyl-5H-furan-2-one
    —— 5'-O-dimethyoxytrityl-3'-O-(tert-butyldimethylsilyl)-N-4-benzoyl-5-methyl-2'-deoxy-α-cytidine 156056-16-5 C44H51N3O7Si
    5'-O-dimethyoxytrityl-3'-O-(tert-butyldimethylsilyl)-N-4-benzoyl-5-methyl-2'-deoxy-α-cytidine
    —— 5-amino-1-benzyl-1,3-dihydroimidazo<4,5-c>pyridin-2-onium mesitylenesulfonate 105987-48-2 C9H11O3S*C13H13N4O
    5-amino-1-benzyl-1,3-dihydroimidazo<4,5-c>pyridin-2-onium mesitylenesulfonate
    —— 5-[1-(tert-butoxycarbonyl)piperidine-4-carbonylamino]indole 913388-34-8 C19H25N3O3
    5-[1-(tert-butoxycarbonyl)piperidine-4-carbonylamino]indole
    —— 5-hydroxy-7-methoxy-2-methyl-6-(diphenylmethyl)isoflavone 98498-14-7 C30H24O4
    5-hydroxy-7-methoxy-2-methyl-6-(diphenylmethyl)isoflavone
    —— 5-exo-formyltricyclo<5.2.0.0<sup>4,6</sup>>nona-2,8-diene-3,4-dicarboxylic acid 123762-29-8 C14H14O5
    5-exo-formyltricyclo<5.2.0.0<sup>4,6</sup>>nona-2,8-diene-3,4-dicarboxylic acid
    —— (5R)-1-fluoro-3,7-bis(2-fluoro-3-pyridinyl)-5,6-dihydrospiro[chromeno[2,3-c]pyridine-5,4-[1,3]oxazin]-2-amine 1335216-18-6 C25H16F3N5O2
    (5R)-1-fluoro-3,7-bis(2-fluoro-3-pyridinyl)-5,6-dihydrospiro[chromeno[2,3-c]pyridine-5,4-[1,3]oxazin]-2-amine
    —— 5-(9-chloro-1-methyl-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinolin-7-yl)-4-methylnicotinonitrile 1404366-33-1 C18H14ClN5
    5-(9-chloro-1-methyl-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinolin-7-yl)-4-methylnicotinonitrile
    —— (5R)-3-chloro-7-(2-fluoro-3-pyridinyl)-5,6-dihydrospiro[chromeno[2,3-c]pyridine-5,4-[1,3]thiazin]-2-amine 1335217-50-9 C20H14ClFN4OS
    (5R)-3-chloro-7-(2-fluoro-3-pyridinyl)-5,6-dihydrospiro[chromeno[2,3-c]pyridine-5,4-[1,3]thiazin]-2-amine
    —— (5-(4-chlorophenyl)tetrazolato-N2)pentaamminecobalt(III)(3+) 129448-33-5 C7H20ClCoN9
    (5-(4-chlorophenyl)tetrazolato-N2)pentaamminecobalt(III)(3+)
    —— 5,10,15-trichlorooctaethylporphyrin 96314-21-5 C36H43Cl3N4
    5,10,15-trichlorooctaethylporphyrin
    —— <5-13C,4-13C=O>-(2,3-dihydro-5-ethoxy-4-ethoxycarbonyl-2-oxofuran-3-ylidene)-triethyloxyphosphorane 130648-78-1 C15H25O8P
    <5-13C,4-13C=O>-(2,3-dihydro-5-ethoxy-4-ethoxycarbonyl-2-oxofuran-3-ylidene)-triethyloxyphosphorane
    —— 5-hydroxymethyl-1-(methyl 2',3'-di-O-acetyl-5'-azido-5'-deoxy-β-D-allofuranosyluronate)uracil 127646-37-1 C16H19N5O10
    5-hydroxymethyl-1-(methyl 2',3'-di-O-acetyl-5'-azido-5'-deoxy-β-D-allofuranosyluronate)uracil
    —— 5-Isothiocyanato-2-(4-methyl-benzyloxy)-pyridine 52024-97-2 C14H12N2OS
    5-Isothiocyanato-2-(4-methyl-benzyloxy)-pyridine
    —— 5-(4-bromo-phenyl)-pyrimidin-4-ylamine 56239-14-6 C10H8BrN3
    5-(4-bromo-phenyl)-pyrimidin-4-ylamine
    —— 5,6,7,12,13,14-Hexahydro-3-hydroxy-2,9-dimethoxy-7-methyl-14-(methylthio)methyldibenzo<b,g>azecine 57955-74-5 C22H29NO3S
    5,6,7,12,13,14-Hexahydro-3-hydroxy-2,9-dimethoxy-7-methyl-14-(methylthio)methyldibenzo<b,g>azecine
    —— 5-(5-{1-[5-(3-methyl-1H-pyrazol-4-yl)-1,2,4-yl]cyclobutyl}pyridin-2-oxadiazol-3-yl)pyrimidin-2-amine 1369512-42-4 C19H18N8O
    5-(5-{1-[5-(3-methyl-1H-pyrazol-4-yl)-1,2,4-yl]cyclobutyl}pyridin-2-oxadiazol-3-yl)pyrimidin-2-amine
    —— 5-Amino-3-[[5-[(2,6-difluoropyrimidin-4-yl)amino]-2-sulfophenyl]diazenyl]-6-[(5-fluoro-2-sulfophenyl)diazenyl]-4-hydroxynaphthalene-2,7-disulfonic acid 1227371-15-4 C26H17F3N8O13S4
    5-Amino-3-[[5-[(2,6-difluoropyrimidin-4-yl)amino]-2-sulfophenyl]diazenyl]-6-[(5-fluoro-2-sulfophenyl)diazenyl]-4-hydroxynaphthalene-2,7-disulfonic acid
    —— 5-Chlor-2-benzamino-zimtaldehyd 92853-57-1 C16H12ClNO2
    5-Chlor-2-benzamino-zimtaldehyd
    —— 5-<2-bromo-ethyl>-5H-dibenzo<a,d>cycloheptene 56797-53-6 C17H15Br
    5-<2-bromo-ethyl>-5H-dibenzo<a,d>cycloheptene
    —— 5-(2-chloro-acetylamino)-3-naphthalen-1-yl-thiazolidine-2,4-dione 92428-04-1 C15H11ClN2O3S
    5-(2-chloro-acetylamino)-3-naphthalen-1-yl-thiazolidine-2,4-dione
    —— 5-(dipropylamino)-3-(3-methoxyphenyl)-1-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one 1160268-56-3 C19H25N5O2
    5-(dipropylamino)-3-(3-methoxyphenyl)-1-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one