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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-n-butylamino-1,3,4-oxadiazole-2-carboxylic acid 76368-98-4 C7H11N3O3
    5-n-butylamino-1,3,4-oxadiazole-2-carboxylic acid
    —— 5-(o-methylphenyl)-1,3-dihydrothieno<3,4-c>pyrrole 2,2-dioxide 109346-48-7 C13H13NO2S
    5-(o-methylphenyl)-1,3-dihydrothieno<3,4-c>pyrrole 2,2-dioxide
    —— 5,6-Dihydro-6-hydroxy-6-methyl-3,4-diphenyl-4H-1,2-oxazin-5-carbonsaeure-ethylester 107389-30-0 C20H21NO4
    5,6-Dihydro-6-hydroxy-6-methyl-3,4-diphenyl-4H-1,2-oxazin-5-carbonsaeure-ethylester
    —— 5-<3-(4-nitrobenzyloxy)benzyl>-1-<(2-benzoyloxyethoxy)methyl>-2-keto-4-methoxypyrimidine 110522-23-1 C29H27N3O8
    5-<3-(4-nitrobenzyloxy)benzyl>-1-<(2-benzoyloxyethoxy)methyl>-2-keto-4-methoxypyrimidine
    —— 5-Amino-1-benzyl-1,2,3-triazole-4-carboxylic Acid (N-2-Acetyl)hydrazide 96239-50-8 C12H14N6O2
    5-Amino-1-benzyl-1,2,3-triazole-4-carboxylic Acid (N-2-Acetyl)hydrazide
    —— 5-(2-Furyl)-2-ethoxy-1,3,4-oxadiazole 106728-70-5 C8H8N2O3
    5-(2-Furyl)-2-ethoxy-1,3,4-oxadiazole
    —— 5-Amino-1-benzyl-4,5-dihydro-6-methyl-1,2,3-triazolo<4,5-d>pyrimidin-4-one 104699-71-0 C12H12N6O
    5-Amino-1-benzyl-4,5-dihydro-6-methyl-1,2,3-triazolo<4,5-d>pyrimidin-4-one
    —— 5-<(2,3-dihydroxy-1-propoxy)methyl>-1-methyluracil 136343-35-6 C9H14N2O5
    5-<(2,3-dihydroxy-1-propoxy)methyl>-1-methyluracil
    —— 5-Benzyloxy-2-methyl-2,3,4,9-tetrahydro-1H-β-carboline 83788-98-1 C19H20N2O
    5-Benzyloxy-2-methyl-2,3,4,9-tetrahydro-1H-β-carboline
    —— (+/-)-5-methyl-1-<(1α,2β,4α)-2-(methanesulfonyloxy)-4-<(triphenylmethoxy)methyl>cyclopentyl>-2,4(1H,3H)-pyrimidinedione 87471-02-1 C31H32N2O6S
    (+/-)-5-methyl-1-<(1α,2β,4α)-2-(methanesulfonyloxy)-4-<(triphenylmethoxy)methyl>cyclopentyl>-2,4(1H,3H)-pyrimidinedione
    —— 5H-Dipyrido<1,2-a:3',2'-e>pyrimidin-5-thione 106531-40-2 C11H7N3S
    5H-Dipyrido<1,2-a:3',2'-e>pyrimidin-5-thione
    —— 5-Acetyl-5,6-dihydro-6-hydroxy-6-methyl-3,4-diphenyl-4H-1,2-oxazin 107389-36-6 C19H19NO3
    5-Acetyl-5,6-dihydro-6-hydroxy-6-methyl-3,4-diphenyl-4H-1,2-oxazin
    —— 5-amino-3,6-dimethoxy-4-nitropyridazine 1-oxide 106531-66-2 C6H8N4O5
    5-amino-3,6-dimethoxy-4-nitropyridazine 1-oxide
    —— 5,6-Dihydro-6-hydroxy-3,6-dimethyl-4-(2-thienyl)-4H-1,2-oxazin-5-carbonsaeure-ethylester 107424-06-6 C13H17NO4S
    5,6-Dihydro-6-hydroxy-3,6-dimethyl-4-(2-thienyl)-4H-1,2-oxazin-5-carbonsaeure-ethylester
    —— 5-Benzyloxy-1,2-dimethyl-2,3,4,9-tetrahydro-1H-β-carboline 83788-99-2 C20H22N2O
    5-Benzyloxy-1,2-dimethyl-2,3,4,9-tetrahydro-1H-β-carboline
    —— 5H,9H,13H,21H,25H-Dibenzo[k,u][1,5,9,15,19]pentaoxacyclotetracosin-5,9,13,21,25-pentone, 7,8,11,12,15,16,23,24,27,28-decahydro-2,4,18,20-tetrahydroxy-11-(hydroxymethyl)-7,15,23,27-tetramethyl-, (7R,11S,15R,23R,27R)- 141731-76-2 C32H38O15
    5H,9H,13H,21H,25H-Dibenzo[k,u][1,5,9,15,19]pentaoxacyclotetracosin-5,9,13,21,25-pentone, 7,8,11,12,15,16,23,24,27,28-decahydro-2,4,18,20-tetrahydroxy-11-(hydroxymethyl)-7,15,23,27-tetramethyl-, (7R,11S,15R,23R,27R)-
    —— 5-(3-fluoro-4-hydroxybenzylidene)-3-(4-methoxyphenyl)-2-thioxo-1,3-oxazolidin-4-one 1275574-73-6 C17H12FNO4S
    5-(3-fluoro-4-hydroxybenzylidene)-3-(4-methoxyphenyl)-2-thioxo-1,3-oxazolidin-4-one
    —— 5'-deoxy-5'-<6-(2-aminopyrrolo<2,3-d>pyrimidin-4-one)methylthio>adenosine 87358-33-6 C17H19N9O4S
    5'-deoxy-5'-<6-(2-aminopyrrolo<2,3-d>pyrimidin-4-one)methylthio>adenosine
    —— 5-Nitro-8-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-triene 94641-75-5 C11H12N2O2
    5-Nitro-8-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-triene
    —— 5-[(2S,3R,4S,5S)-5-(bromomethyl)-3,4-dihydroxyoxolan-2-yl]-1,3-dimethylpyrimidine-2,4-dione 84829-09-4 C11H15BrN2O5
    5-[(2S,3R,4S,5S)-5-(bromomethyl)-3,4-dihydroxyoxolan-2-yl]-1,3-dimethylpyrimidine-2,4-dione
    —— 5-ethyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine 107363-08-6 C15H12N2OS
    5-ethyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine
    —— 5-Chloro-3-[5-(4-chloro-phenyl)-3-methyl-pyrazol-1-yl]-1-cyclohexyl-1H-pyrazin-2-one 98078-32-1 C20H20Cl2N4O
    5-Chloro-3-[5-(4-chloro-phenyl)-3-methyl-pyrazol-1-yl]-1-cyclohexyl-1H-pyrazin-2-one
    —— 5-Nitro-8-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-9-one 94641-40-4 C11H10N2O3
    5-Nitro-8-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-9-one
    —— 5-benzyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine 107363-09-7 C20H14N2OS
    5-benzyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine
    —— 5-Methanesulfonyl-pyrimidine-2,4-diamine 106073-42-1 C5H8N4O2S
    5-Methanesulfonyl-pyrimidine-2,4-diamine
    —— 5-methyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine 107363-07-5 C14H10N2OS
    5-methyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine
    —— (5-tert-Butyl-4,5,6,7-tetrahydro-1H-indazol-3-yl)-methanol 82071-79-2 C12H20N2O
    (5-tert-Butyl-4,5,6,7-tetrahydro-1H-indazol-3-yl)-methanol
    —— 5-acetyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine 107363-10-0 C15H10N2O2S
    5-acetyl-4-oxo-4,5-dihydro<1>benzothieno<2,3-e>pyrrolo<1,2-a>pyrazine
    —— 5-[(2S,3R,4S,5S)-5-(chloromethyl)-3,4-dihydroxyoxolan-2-yl]-1,3-dimethylpyrimidine-2,4-dione 84829-08-3 C11H15ClN2O5
    5-[(2S,3R,4S,5S)-5-(chloromethyl)-3,4-dihydroxyoxolan-2-yl]-1,3-dimethylpyrimidine-2,4-dione
    —— 5-((2S,3S,4R,5R)-3-Chloro-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-1,3-dimethyl-1H-pyrimidine-2,4-dione 103781-81-3 C11H15ClN2O5
    5-((2S,3S,4R,5R)-3-Chloro-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-1,3-dimethyl-1H-pyrimidine-2,4-dione
    —— 5-Isopropyl-3-methyl-1-(2,4-dinitro-phenyl)-pyrazol 6126-19-8 C13H14N4O4
    5-Isopropyl-3-methyl-1-(2,4-dinitro-phenyl)-pyrazol
    —— 5-Acetylamino-1-benzyl-4,5-dihydro-1,2,3-triazolo<4,5-d>pyrimidin-4-one 104699-77-6 C13H12N6O2
    5-Acetylamino-1-benzyl-4,5-dihydro-1,2,3-triazolo<4,5-d>pyrimidin-4-one
    —— 5,5-Dichloro-2,3,7,8-tetramethoxydibenzoselenophene 91538-49-7 C16H16Cl2O4Se
    5,5-Dichloro-2,3,7,8-tetramethoxydibenzoselenophene
    —— 5-Chloro-1-cyclohexyl-3-(3-methyl-5-phenyl-pyrazol-1-yl)-1H-pyrazin-2-one 98078-31-0 C20H21ClN4O
    5-Chloro-1-cyclohexyl-3-(3-methyl-5-phenyl-pyrazol-1-yl)-1H-pyrazin-2-one
    —— 5-Amino-9-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-8-one 94641-50-6 C11H12N2O
    5-Amino-9-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-8-one
    —— (5aR,7S,8aS)-3-Methyl-7-trityloxymethyl-6,7,8,8a-tetrahydro-5aH-cyclopenta[4,5]oxazolo[3,2-a]pyrimidin-2-one 87471-03-2 C30H28N2O3
    (5aR,7S,8aS)-3-Methyl-7-trityloxymethyl-6,7,8,8a-tetrahydro-5aH-cyclopenta[4,5]oxazolo[3,2-a]pyrimidin-2-one
    —— 5-Amino-8-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-9-one 94641-44-8 C11H12N2O
    5-Amino-8-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-9-one
    —— 5-(2,5-Dioxo-cyclopentyl)-5-hydroxy-pyrimidine-2,4,6-trione 89377-01-5 C9H8N2O6
    5-(2,5-Dioxo-cyclopentyl)-5-hydroxy-pyrimidine-2,4,6-trione
    —— 5-Ethyl-3-methyl-1-(2,4-dinitrophenyl)-pyrazol 6126-17-6 C12H12N4O4
    5-Ethyl-3-methyl-1-(2,4-dinitrophenyl)-pyrazol
    —— 5-Nitro-9-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-8-one 94641-49-3 C11H10N2O3
    5-Nitro-9-aza-tricyclo[8.1.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-8-one
    —— 5,6-Dihydroxy-cumarino<3'.4'-2.3>cumaron 29822-93-3 C15H8O5
    5,6-Dihydroxy-cumarino<3'.4'-2.3>cumaron
    —— 5-(2,6-dioxo-cyclohexyl)-5-hydroxy-pyrimidine-2,4,6-trione 89377-02-6 C10H10N2O6
    5-(2,6-dioxo-cyclohexyl)-5-hydroxy-pyrimidine-2,4,6-trione
    —— 5'-deoxy-5'-(5-pyrrolo<2,3-d>pyrimidin-4-onemethylthio)adenosine 87358-30-3 C17H18N8O4S
    5'-deoxy-5'-(5-pyrrolo<2,3-d>pyrimidin-4-onemethylthio)adenosine
    —— 5-Benzyloxy-3H-imidazole-4-carboxylic acid amide 88100-22-5 C11H11N3O2
    5-Benzyloxy-3H-imidazole-4-carboxylic acid amide
    —— 5,5-Dichloro-2,3,7,8-tetramethoxydibenzotellurophene 91538-50-0 C16H16Cl2O4Te
    5,5-Dichloro-2,3,7,8-tetramethoxydibenzotellurophene
    —— 5,5-dideuterio-1,5-dihydro-3-methyl-10-thia-5-deazaflavin 69139-14-6 C12H10N2O2S
    5,5-dideuterio-1,5-dihydro-3-methyl-10-thia-5-deazaflavin
    —— (5R,9R,13S,14R)-6-acetyl-4,5-epoxy-3-methoxy-14,17-dimethyl-6-aza-morphinan-7-on 84576-05-6 C20H24N2O4
    (5R,9R,13S,14R)-6-acetyl-4,5-epoxy-3-methoxy-14,17-dimethyl-6-aza-morphinan-7-on
    —— 5,6-didehydro-7β-hydroxymethyl-3-methoxy-5,7α,17-trimethylmorphinan 80665-78-7 C21H29NO2
    5,6-didehydro-7β-hydroxymethyl-3-methoxy-5,7α,17-trimethylmorphinan
    —— 5-amino-6-chloro-4-nitro-2-(β-D-ribofuranosyl)-2H-pyridazin-3-one 81366-58-7 C9H11ClN4O7
    5-amino-6-chloro-4-nitro-2-(β-D-ribofuranosyl)-2H-pyridazin-3-one
    —— 5-Amino-N-phenyl-2-thiophenecarboxamide 79822-83-6 C11H10N2OS
    5-Amino-N-phenyl-2-thiophenecarboxamide