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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5-amino-2-bromo-1-(<i>O</i><sup>5</sup>-phosphono-β-<i>D</i>-ribofuranosyl)-1<i>H</i>-imidazole-4-carboxylic acid ethyl ester 61134-07-4 C11H17BrN3O9P
    5-amino-2-bromo-1-(<i>O</i><sup>5</sup>-phosphono-β-<i>D</i>-ribofuranosyl)-1<i>H</i>-imidazole-4-carboxylic acid ethyl ester
    —— 5,5-dideuterio-2,6-diphenyl-4,5-dihydro-2<i>H</i>-pyridazin-3-one 55999-96-7 C16H14N2O
    5,5-dideuterio-2,6-diphenyl-4,5-dihydro-2<i>H</i>-pyridazin-3-one
    —— 5α-<11,11-2H>-pregnan-3,20-dion 58702-19-5 C21H32O2
    5α-<11,11-2H>-pregnan-3,20-dion
    —— 5-[3-(5-hexylthiophen-2-yl)benzo[c]thiophen-1-yl]thiophene-2-carbaldehyde 1064110-68-4 C23H22OS3
    5-[3-(5-hexylthiophen-2-yl)benzo[c]thiophen-1-yl]thiophene-2-carbaldehyde
    —— 5-O-(3-O-acetyl-5-azido-5-deoxyl-2-O-methyl-α-D-ribofuranosyl)-1-deoxy-1-(3-(benzyloxymethyl)uracil-1-yl)-2,3-O-cyclopentanylidene-5-C-ethynyl-β-ribofuranose 1067674-79-6 C32H37N5O11
    5-O-(3-O-acetyl-5-azido-5-deoxyl-2-O-methyl-α-D-ribofuranosyl)-1-deoxy-1-(3-(benzyloxymethyl)uracil-1-yl)-2,3-O-cyclopentanylidene-5-C-ethynyl-β-ribofuranose
    —— 5-bromo-2-(1H-indol-1-yl)-6-(1H-pyrazol-1-yl)pyrimidine-4-amine 1620910-38-4 C15H11BrN6
    5-bromo-2-(1H-indol-1-yl)-6-(1H-pyrazol-1-yl)pyrimidine-4-amine
    —— 5,5,9-trimethyltricyclo<7.2.2.0<sup>1,6</sup>>tridec-6-en-11-one 107291-68-9 C16H24O
    5,5,9-trimethyltricyclo<7.2.2.0<sup>1,6</sup>>tridec-6-en-11-one
    —— 5-Fluoro-1,4,9-trimethyl-1,4-dihydro-1,4-epiazano-naphthalene 86909-53-7 C13H14FN
    5-Fluoro-1,4,9-trimethyl-1,4-dihydro-1,4-epiazano-naphthalene
    —— 5-[(2-chlorophenyl)acetylamino]-3-(3,5-dichlorophenyl)-4-(4-pyridyl)isoxazole 1000186-75-3 C22H14Cl3N3O2
    5-[(2-chlorophenyl)acetylamino]-3-(3,5-dichlorophenyl)-4-(4-pyridyl)isoxazole
    —— 5-(2-trifluoromethyl-phenylmethanesulfonyl)-1,3-dihydro-indol-2-one 477573-04-9 C16H12F3NO3S
    5-(2-trifluoromethyl-phenylmethanesulfonyl)-1,3-dihydro-indol-2-one
    —— 5-methylselanylethynyl-2,3-diphenyl-isoxazolidine 4891-92-3 C18H17NOSe
    5-methylselanylethynyl-2,3-diphenyl-isoxazolidine
    —— 5-fluoro-2,2-dimethyl-4,6-diphenyl-5-(trifluoromethyl)-1,3-dioxane 126255-64-9 C19H18F4O2
    5-fluoro-2,2-dimethyl-4,6-diphenyl-5-(trifluoromethyl)-1,3-dioxane
    —— 5-(((5-acetyl-2-methoxybenzyl)oxy)(1-methyl-1H-imidazol-5-yl)methyl)-2'-methyl(1,1'-biphenyl)-2-carbonitrile hydrochloride 371763-04-1 C29H27N3O3*ClH
    5-(((5-acetyl-2-methoxybenzyl)oxy)(1-methyl-1H-imidazol-5-yl)methyl)-2'-methyl(1,1'-biphenyl)-2-carbonitrile hydrochloride
    —— 5-(4-bromo-3,3-dimethylcyclopenta-1,4-dienyl)nonan-5-ol 1518911-35-7 C16H27BrO
    5-(4-bromo-3,3-dimethylcyclopenta-1,4-dienyl)nonan-5-ol
    —— 5-hydroxy-2-methoxycarbonylmethylsulfanyl-4-methyl-thieno[2,3-<i>d</i>]pyrimidine-6-carboxylic acid 43107-02-4 C11H10N2O5S2
    5-hydroxy-2-methoxycarbonylmethylsulfanyl-4-methyl-thieno[2,3-<i>d</i>]pyrimidine-6-carboxylic acid
    —— 5,5a,8a,8b,9,10-Hexahydro-7-oxa-1-thia-dicyclopenta[a,f]naphthalene-6,8-dione 60273-16-7 C14H12O3S
    5,5a,8a,8b,9,10-Hexahydro-7-oxa-1-thia-dicyclopenta[a,f]naphthalene-6,8-dione
    —— 5-isopropenyl-1,3-trimethyltricyclo<4.3.1.03,7>dec-4-en-9-one 70329-74-7 C15H20O
    5-isopropenyl-1,3-trimethyltricyclo<4.3.1.03,7>dec-4-en-9-one
    —— 5'-methoxy-1'-((trifluoromethyl)sulfonyl)spiro[cyclopropane-1,3'-indoline] 1426327-66-3 C12H12F3NO3S
    5'-methoxy-1'-((trifluoromethyl)sulfonyl)spiro[cyclopropane-1,3'-indoline]
    —— 5,7-Dicinnamyloxy-4-methyl-cumarin 70093-36-6 C28H24O4
    5,7-Dicinnamyloxy-4-methyl-cumarin
    —— 5,7-Dimethylisochinolin-3-carbonsaeure 72374-16-4 C12H11NO2
    5,7-Dimethylisochinolin-3-carbonsaeure
    —— 5-phenyl-2,3-dihydro-5<i>H</i>-thiazolo[2,3-<i>b</i>]quinazoline 67396-98-9 C16H14N2S
    5-phenyl-2,3-dihydro-5<i>H</i>-thiazolo[2,3-<i>b</i>]quinazoline
    —— 5-<4-Methoxy-phenyl>-3,5-dimethyl-2,5-dihydro-furan-2-on 33268-42-7 C13H14O3
    5-<4-Methoxy-phenyl>-3,5-dimethyl-2,5-dihydro-furan-2-on
    —— 5β-Methyl-Δ<sup>1</sup>-androsten-3-on-17β-ol-Acetat 42363-02-0 C22H32O3
    5β-Methyl-Δ<sup>1</sup>-androsten-3-on-17β-ol-Acetat
    —— 5-phenylamino-2H-1,2,3-triazole-4-carbohydrazide 1160050-82-7 C9H10N6O
    5-phenylamino-2H-1,2,3-triazole-4-carbohydrazide
    —— 5-chloro-thiophene-2-carboxylic acid-N-[2-isobutyloxy-1-(3-methyl-2,3,4,5-tetrahydro-1H-benzo[d]azepin-7-ylcarbamoyl)-ethyl]-amide 919098-07-0 C23H30ClN3O3S
    5-chloro-thiophene-2-carboxylic acid-N-[2-isobutyloxy-1-(3-methyl-2,3,4,5-tetrahydro-1H-benzo[d]azepin-7-ylcarbamoyl)-ethyl]-amide
    —— 5-amino-3-(4-bromophenyl)-4-(4-pyrimidinyl)isoxazole 897645-74-8 C13H9BrN4O
    5-amino-3-(4-bromophenyl)-4-(4-pyrimidinyl)isoxazole
    —— 5-amino-4-(4-pyrimidinyl)-3-(2,4,6-trifluorophenyl)isoxazole 897646-48-9 C13H7F3N4O
    5-amino-4-(4-pyrimidinyl)-3-(2,4,6-trifluorophenyl)isoxazole
    —— 5-(4-chlorophenyl)-3-[(R)-2-cyclohexyl-6-oxo-4-(4-pyrrolidin-1-ylbenzenesulfonyl)piperazin-1-yl]thiophene-2-carboxylic acid 1356455-69-0 C31H34ClN3O5S2
    5-(4-chlorophenyl)-3-[(R)-2-cyclohexyl-6-oxo-4-(4-pyrrolidin-1-ylbenzenesulfonyl)piperazin-1-yl]thiophene-2-carboxylic acid
    —— 5-(3,5-dimethylphenyl)-2,3,4-tribromoselenophene 1146618-58-7 C12H9Br3Se
    5-(3,5-dimethylphenyl)-2,3,4-tribromoselenophene
    —— 5-[[2-(2-phenylethyl)-3H-imidazo[4,5-c]pyridin-6-yl]amino]pyrazine-2-carbonitrile 1184843-05-7 C19H15N7
    5-[[2-(2-phenylethyl)-3H-imidazo[4,5-c]pyridin-6-yl]amino]pyrazine-2-carbonitrile
    —— 5-Ethyl-6-methyl-bicyclo<2.2.0>hex-5-en-2t,3t-dicarbonsaeure-anhydrid 56254-31-0 C11H12O3
    5-Ethyl-6-methyl-bicyclo<2.2.0>hex-5-en-2t,3t-dicarbonsaeure-anhydrid
    —— (5S,14S)-17-(1,5-Dimethyl-hexyl)-4,4,13,14-tetramethyl-4,5,6,7,8,11,12,13,14,15,16,17-dodecahydro-1H-cyclopropa[9,10]cyclopenta[a]phenanthrene 56722-63-5 C30H50
    (5S,14S)-17-(1,5-Dimethyl-hexyl)-4,4,13,14-tetramethyl-4,5,6,7,8,11,12,13,14,15,16,17-dodecahydro-1H-cyclopropa[9,10]cyclopenta[a]phenanthrene
    —— 5-amino-1-(<i>O</i><sup>5</sup>-phosphono-α-<i>D</i>-ribofuranosyl)-1<i>H</i>-imidazole-4-carboxylic acid methyl ester 57204-08-7 C10H16N3O9P
    5-amino-1-(<i>O</i><sup>5</sup>-phosphono-α-<i>D</i>-ribofuranosyl)-1<i>H</i>-imidazole-4-carboxylic acid methyl ester
    —— 5-(4-carbamimidoylsulfamoyl-phenylhydrazono)-1-(4-nitro-phenyl)-4-oxo-4,5-dihydro-1<i>H</i>-pyrazole-3-carboxylic acid ethyl ester 57198-72-8 C19H18N8O7S
    5-(4-carbamimidoylsulfamoyl-phenylhydrazono)-1-(4-nitro-phenyl)-4-oxo-4,5-dihydro-1<i>H</i>-pyrazole-3-carboxylic acid ethyl ester
    —— 5-[4-(2-Methoxy-phenyl)-4H-benzo[f]quinolin-(3Z)-ylidenemethylimino]-pyrimidine-2,4,6-trione 60315-86-8 C25H18N4O4
    5-[4-(2-Methoxy-phenyl)-4H-benzo[f]quinolin-(3Z)-ylidenemethylimino]-pyrimidine-2,4,6-trione
    —— 5-(4-chlorophenyl)-3-(1,4-dioxaspiro[4.5]decan-8-yloxy)-1-(2-ethylphenyl)-1H-pyrazole 1567402-39-4 C25H27ClN2O3
    5-(4-chlorophenyl)-3-(1,4-dioxaspiro[4.5]decan-8-yloxy)-1-(2-ethylphenyl)-1H-pyrazole
    —— 5-O-(4,4'-dimethoxytrityl)-1,2-deoxy-α-1-(3-iodophenyl)-D-ribofuranose 909869-66-5 C32H31IO5
    5-O-(4,4'-dimethoxytrityl)-1,2-deoxy-α-1-(3-iodophenyl)-D-ribofuranose
    —— 5,8-diethoxy-1,2,3,4,6,7-hexahydro-anthraquinone 860529-07-3 C18H22O4
    5,8-diethoxy-1,2,3,4,6,7-hexahydro-anthraquinone
    —— 5-iodo-3-[3-(3-methoxy-[2]piperidyl)-2-oxo-propyl]-3H-quinazolin-4-one 860346-14-1 C17H20IN3O3
    5-iodo-3-[3-(3-methoxy-[2]piperidyl)-2-oxo-propyl]-3H-quinazolin-4-one
    —— 5,38-dibromo-7,8,10,11,13,14,16,17,26,27,29,30,32,33,35,36-hexadecahydrodinaphtho[2,3-b:2',3'-q][1,4,7,10,13,16,19,22,25,28]decaoxacyclotriacontine 1207666-02-1 C36H42Br2O10
    5,38-dibromo-7,8,10,11,13,14,16,17,26,27,29,30,32,33,35,36-hexadecahydrodinaphtho[2,3-b:2',3'-q][1,4,7,10,13,16,19,22,25,28]decaoxacyclotriacontine
    —— 5-silaspiro[4.5]decan-8-one 1330166-63-6 C9H16OSi
    5-silaspiro[4.5]decan-8-one
    —— 5-benzhydrylidene-1-methyl-8,8-diphenyl-8,8a-dihydro-1<i>H</i>-imidazo[1,2-<i>c</i>][1,3]oxazin-7-one 40110-23-4 C32H26N2O2
    5-benzhydrylidene-1-methyl-8,8-diphenyl-8,8a-dihydro-1<i>H</i>-imidazo[1,2-<i>c</i>][1,3]oxazin-7-one
    —— 5-Ethoxy-1-methyl-1H-indole-2-carboxylic acid [1-methyl-prop-(Z)-ylidene]-hydrazide 61905-43-9 C16H21N3O2
    5-Ethoxy-1-methyl-1H-indole-2-carboxylic acid [1-methyl-prop-(Z)-ylidene]-hydrazide
    —— [5']cytidylic acid mono-[3-(6-amino-purin-9-yl)-propyl] ester 56495-66-0 C17H23N8O8P
    [5']cytidylic acid mono-[3-(6-amino-purin-9-yl)-propyl] ester
    —— 5-Acetyl-4-methylbenzimidazol-1H,3H-2-on 67521-00-0 C10H10N2O2
    5-Acetyl-4-methylbenzimidazol-1H,3H-2-on
    —— 5-hydroxy-6-(4-nitro-phenylazo)-pyridine-2-carboxylic acid 60728-74-7 C12H8N4O5
    5-hydroxy-6-(4-nitro-phenylazo)-pyridine-2-carboxylic acid
    —— 5,5'-bis-(3-nitro-phenyl)-3H,3'H-3,3'-(1,1'-p-phenylenediamino-diethyl)-bis-[1,3,4]oxadiazole-2-thione 72384-72-6 C26H22N8O6S2
    5,5'-bis-(3-nitro-phenyl)-3H,3'H-3,3'-(1,1'-p-phenylenediamino-diethyl)-bis-[1,3,4]oxadiazole-2-thione
    —— 5'-(4-amino-2-cyclopropyl-5-methyl-2H-imidazol-2-yl)-6-fluoro-2'-hydroxybiphenyl-3-carbonitrile 1260215-90-4 C20H17FN4O
    5'-(4-amino-2-cyclopropyl-5-methyl-2H-imidazol-2-yl)-6-fluoro-2'-hydroxybiphenyl-3-carbonitrile
    —— 5-bromo-2,4,6-trimethoxy-isophthalic acid 857802-23-4 C11H11BrO7
    5-bromo-2,4,6-trimethoxy-isophthalic acid
    —— 5-Cyclohexyl-acenaphthen 93872-27-6 C18H20
    5-Cyclohexyl-acenaphthen