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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-methylsulfanyl-4-[3'-(2,2,2-trifluoro-acetyl)-biphenyl-3-sulfonyl]-thiophene-2-carboxamidine trifluoroacetate 631903-33-8 C2HF3O2*C20H15F3N2O3S3
    5-methylsulfanyl-4-[3'-(2,2,2-trifluoro-acetyl)-biphenyl-3-sulfonyl]-thiophene-2-carboxamidine trifluoroacetate
    —— 5,6-anhydro-1,2-O-isopropylidene-3-O-methyl-L-idopyranose 868078-61-9 C10H16O5
    5,6-anhydro-1,2-O-isopropylidene-3-O-methyl-L-idopyranose
    —— 5-methylsulfonyl-1-tetralone 346690-88-8 C11H12O3S
    5-methylsulfonyl-1-tetralone
    —— 5-phenyl-3,6-dihydro-[1,4]diazepino[6,5-b]indol-2(1H)-one 41534-73-0 C17H13N3O
    5-phenyl-3,6-dihydro-[1,4]diazepino[6,5-b]indol-2(1H)-one
    —— 5-hydroxymethyl-4-methylthiophene-3-carbonitrile 232281-15-1 C7H7NOS
    5-hydroxymethyl-4-methylthiophene-3-carbonitrile
    —— 5-Butyl-5-(2,4-dinitrophenyl)-2,2-dimethyl-1,3-dioxane-4,6-dione 62370-92-7 C16H18N2O8
    5-Butyl-5-(2,4-dinitrophenyl)-2,2-dimethyl-1,3-dioxane-4,6-dione
    —— 5-chloromethylisoxazole-3-carboxamide 203792-29-4 C5H5ClN2O2
    5-chloromethylisoxazole-3-carboxamide
    —— 5,5'-Sulfonyl-bis-[2-(2-hydroxy-3,5-di-tert-butylphenyl)-2H-benzotriazole] 145233-58-5 C40H48N6O4S
    5,5'-Sulfonyl-bis-[2-(2-hydroxy-3,5-di-tert-butylphenyl)-2H-benzotriazole]
    —— 5-Isobutyl-5-methyl-1,3-dichlor-hydantoin 43161-90-6 C8H12Cl2N2O2
    5-Isobutyl-5-methyl-1,3-dichlor-hydantoin
    —— 5,6-bishydroxymethyl-1,1,3,3-tetramethylisoindolin-2-yloxyl radical 624731-72-2 C14H20NO3
    5,6-bishydroxymethyl-1,1,3,3-tetramethylisoindolin-2-yloxyl radical
    —— 5-benzyl-6-phenyl-5<i>H</i>-pyrrolo[3,4-<i>d</i>][1,2,3]thiadiazole 67107-68-0 C17H13N3S
    5-benzyl-6-phenyl-5<i>H</i>-pyrrolo[3,4-<i>d</i>][1,2,3]thiadiazole
    —— 5,9,9,14-Tetramethyl-8-oxa-11,13,17,18-tetrazatetracyclo[8.8.0.02,7.012,17]octadeca-1(18),2(7),3,5,10,12,14-heptaen-16-one 133210-74-9 C17H16N4O2
    5,9,9,14-Tetramethyl-8-oxa-11,13,17,18-tetrazatetracyclo[8.8.0.02,7.012,17]octadeca-1(18),2(7),3,5,10,12,14-heptaen-16-one
    —— 5-fluoro-2-methyl-6-nitro-1,3-benzothiazole 203340-21-0 C8H5FN2O2S
    5-fluoro-2-methyl-6-nitro-1,3-benzothiazole
    —— 5-(4,4-difluorobut-3-enylsulfonyl)-3-phenylisoxazole 172932-79-5 C13H11F2NO3S
    5-(4,4-difluorobut-3-enylsulfonyl)-3-phenylisoxazole
    —— 5-Nitro-7H-benzimidazo<2.1a>benz(de)isochinolin-7-on 26559-71-7 C18H9N3O3
    5-Nitro-7H-benzimidazo<2.1a>benz(de)isochinolin-7-on
    —— 5-amino-1-(2,3,5-tri-O-benzyl-α-D-arabinofuranosyl)pyrazole-4-carboxamide 89733-81-3 C30H32N4O5
    5-amino-1-(2,3,5-tri-O-benzyl-α-D-arabinofuranosyl)pyrazole-4-carboxamide
    —— 5-Chlor-2-n-butyl-4-isothiazolin-3-on 33344-76-2 C7H10ClNOS
    5-Chlor-2-n-butyl-4-isothiazolin-3-on
    —— 5-Chlor-2-n-propyl-4-isothiazolin-3-on 33344-75-1 C6H8ClNOS
    5-Chlor-2-n-propyl-4-isothiazolin-3-on
    —— 5-Benzyloxy-2,3,4,9-tetrahydro-1H-β-carboline 83788-95-8 C18H18N2O
    5-Benzyloxy-2,3,4,9-tetrahydro-1H-β-carboline
    —— 5,5-bis-chloromethyl-2-oxo-2λ<sup>5</sup>-[1,3,2]dioxaphosphinan-2-ol 90773-66-3 C5H9Cl2O4P
    5,5-bis-chloromethyl-2-oxo-2λ<sup>5</sup>-[1,3,2]dioxaphosphinan-2-ol
    —— 5-Aethoxy-2-(2-mercapto-aethyl)-benzimidazol 4198-63-4 C11H14N2OS
    5-Aethoxy-2-(2-mercapto-aethyl)-benzimidazol
    —— 5-amino-3,6-dinitro-2-ethoxy-1,8-naphthyridine 106582-59-6 C10H9N5O5
    5-amino-3,6-dinitro-2-ethoxy-1,8-naphthyridine
    —— 5-Benzyloxy-1-methyl-2,3,4,9-tetrahydro-1H-β-carboline 83788-96-9 C19H20N2O
    5-Benzyloxy-1-methyl-2,3,4,9-tetrahydro-1H-β-carboline
    —— (5R,9R,13S,14R)-4,5-epoxy-3-methoxy-6,14,17-trimethyl-6-aza-morphinan-7-on 84576-03-4 C19H24N2O3
    (5R,9R,13S,14R)-4,5-epoxy-3-methoxy-6,14,17-trimethyl-6-aza-morphinan-7-on
    —— [5-Naphthalen-2-yl-[1,3]thiaselenol-(2Z)-ylidene]-acetic acid ethyl ester 74308-51-3 C17H14O2SSe
    [5-Naphthalen-2-yl-[1,3]thiaselenol-(2Z)-ylidene]-acetic acid ethyl ester
    —— 5-(Aminosulfonyl)-2-[[(2-chlorophenyl)methyl]amino]benzoic acid 151104-38-0 C14H13ClN2O4S
    5-(Aminosulfonyl)-2-[[(2-chlorophenyl)methyl]amino]benzoic acid
    —— (5S)-5-methyl-3-(4-methylphenyl)-1,3-oxazolidin-2-one 99855-08-0 C11H13NO2
    (5S)-5-methyl-3-(4-methylphenyl)-1,3-oxazolidin-2-one
    —— 5-(2-Methoxy-phenyl)-3,5-dihydro-1H-thieno[3,4-c]pyrrole 2,2-dioxide 109346-47-6 C13H13NO3S
    5-(2-Methoxy-phenyl)-3,5-dihydro-1H-thieno[3,4-c]pyrrole 2,2-dioxide
    —— 5-(4-Chloro-phenyl)-4,5-dihydro-benzo[b]oxepin-3-one 112082-91-4 C16H13ClO2
    5-(4-Chloro-phenyl)-4,5-dihydro-benzo[b]oxepin-3-one
    —— 5-(Methoxyiminomethyl)-1,2,3-thiadiazole 143772-49-0 C4H5N3OS
    5-(Methoxyiminomethyl)-1,2,3-thiadiazole
    —— 5-(1-benzyl-2-phenyl-ethyl)-3-methyl-isoxazole 41027-45-6 C19H19NO
    5-(1-benzyl-2-phenyl-ethyl)-3-methyl-isoxazole
    —— 5-Dipropylamino-2-oxo-cyclohexanecarboxylic acid phenylamide 152763-96-7 C19H28N2O2
    5-Dipropylamino-2-oxo-cyclohexanecarboxylic acid phenylamide
    —— 5-Amino-3-(2-benzoxyethoxymethyl)-4-carbamoylimidazole 82145-34-4 C14H18N4O3
    5-Amino-3-(2-benzoxyethoxymethyl)-4-carbamoylimidazole
    —— 5-acetoxycanthin-6-one 99964-80-4 C16H10N2O3
    5-acetoxycanthin-6-one
    —— 5-[(E)-2-(4-Nitro-phenyl)-vinyl]-1H-imidazole 75840-84-5 C11H9N3O2
    5-[(E)-2-(4-Nitro-phenyl)-vinyl]-1H-imidazole
    —— 5-N-(2-Aminophenyl)amino-7,9-dibromo-2-t-butyl-4-cyano-1,3,6,9b-tetraazaphenalene 136539-27-0 C20H17Br2N7
    5-N-(2-Aminophenyl)amino-7,9-dibromo-2-t-butyl-4-cyano-1,3,6,9b-tetraazaphenalene
    —— [5-Methyl-[1,3]thiaselenol-(2Z)-ylidene]-phenyl-amine 74277-44-4 C10H9NSSe
    [5-Methyl-[1,3]thiaselenol-(2Z)-ylidene]-phenyl-amine
    —— 5-O-(tetrahydro-2-pyranyl)mevalonate 78501-59-4 C12H22O5
    5-O-(tetrahydro-2-pyranyl)mevalonate
    —— 5-Azaspiro[2.4]heptane-1,5-dicarboxylic acid, 1-ethyl 5-(phenylmethyl) ester 150543-36-5 C17H21NO4
    5-Azaspiro[2.4]heptane-1,5-dicarboxylic acid, 1-ethyl 5-(phenylmethyl) ester
    —— 5-Methyl-pyrido<2,3-d>pyridazin 19818-96-3 C8H7N3
    5-Methyl-pyrido<2,3-d>pyridazin
    —— 5-(2-Fluorophenoxy)-2-isothiocyanato-1,3-di(propan-2-yl)benzene 142610-36-4 C19H20FNOS
    5-(2-Fluorophenoxy)-2-isothiocyanato-1,3-di(propan-2-yl)benzene
    —— 5-oxo-pent-3-enoic acid 22970-07-6 C5H6O3
    5-oxo-pent-3-enoic acid
    —— 5-epi-ilimaquinone 96806-31-4 C22H30O4
    5-epi-ilimaquinone
    —— 5-Diphenoxyphosphoryl-2-(1,1,1,3,3,3-hexafluoropropan-2-ylidene)-4,4-bis(trifluoromethyl)-1,3-dithiolane 66172-02-9 C20H11F12O3PS2
    5-Diphenoxyphosphoryl-2-(1,1,1,3,3,3-hexafluoropropan-2-ylidene)-4,4-bis(trifluoromethyl)-1,3-dithiolane
    —— 5-cyano-N-cyclopropyl-2-[2-oxiranylmethoxy]benzamide 313477-53-1 C14H14N2O3
    5-cyano-N-cyclopropyl-2-[2-oxiranylmethoxy]benzamide
    —— 5,8-benzyloxycarbonylimino-3,5,6,7,8-tetradeoxy-3-fluoro-1,2-O-isopropylidene-α-D-gluco-octose 144691-16-7 C19H24FNO5
    5,8-benzyloxycarbonylimino-3,5,6,7,8-tetradeoxy-3-fluoro-1,2-O-isopropylidene-α-D-gluco-octose
    —— 5-(4-bromophenyl)-1-methyl-1H-pyrazol-3-amine 126417-83-2 C10H10BrN3
    5-(4-bromophenyl)-1-methyl-1H-pyrazol-3-amine
    —— 5,6,9,10-tetradehydrocyclodeca<1,2,3,4-def>-benzo<7,8>biphenylene 100229-92-3 C22H10
    5,6,9,10-tetradehydrocyclodeca<1,2,3,4-def>-benzo<7,8>biphenylene
    —— 5-(5-chloro-3-fluoro-2-pyridyl)-4-chloro-2-methyl-[2H]-pyrazole-3-carboxylic acid 214055-14-8 C10H6Cl2FN3O2
    5-(5-chloro-3-fluoro-2-pyridyl)-4-chloro-2-methyl-[2H]-pyrazole-3-carboxylic acid
    —— 5-(Chloromethyl)-N,N-dimethylpyridin-2-amine 1248994-14-0 C8H11ClN2
    5-(Chloromethyl)-N,N-dimethylpyridin-2-amine