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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 2-Formyl-A-nor-5α-androst-1-en-17-on 21983-01-7 C19H26O2
    2-Formyl-A-nor-5α-androst-1-en-17-on
    —— 2-chloro-12a-phenyl-12,12a-dihydro-5<i>H</i>-benzo[4,5]imidazo[1,2-<i>c</i>]quinazolin-6-one 36105-76-7 C20H14ClN3O
    2-chloro-12a-phenyl-12,12a-dihydro-5<i>H</i>-benzo[4,5]imidazo[1,2-<i>c</i>]quinazolin-6-one
    —— 2-(2-Acetaminophenyl)-4-methyl-thiazolin-Δ<sup>3</sup> 91566-36-8 C12H14N2OS
    2-(2-Acetaminophenyl)-4-methyl-thiazolin-Δ<sup>3</sup>
    —— 2-((1r,4r)-4-(4-(4-amino-7,7-dimethyl-7H-pyrimido[4,5-b][1,4]oxazin-6-yl)phenyl)cyclohexyl)acetonitrile 1593076-96-0 C22H25N5O
    2-((1r,4r)-4-(4-(4-amino-7,7-dimethyl-7H-pyrimido[4,5-b][1,4]oxazin-6-yl)phenyl)cyclohexyl)acetonitrile
    —— (2S,3S,7S,8S)-1-[(tert-butyldimethylsilyl)oxy]-2-(4-methoxybenzyloxy)-5-methylene-7-methoxy-8-methyl-9-[(tert-butyldiphenylsilyl)oxy]-3-nonanol 1385034-12-7 C42H64O6Si2
    (2S,3S,7S,8S)-1-[(tert-butyldimethylsilyl)oxy]-2-(4-methoxybenzyloxy)-5-methylene-7-methoxy-8-methyl-9-[(tert-butyldiphenylsilyl)oxy]-3-nonanol
    —— 2-(4-chloro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)benzo[d]oxazole 1429924-56-0 C12H6ClN5O
    2-(4-chloro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)benzo[d]oxazole
    —— 2α,3β,23-triacetylmadecassic acid 99598-46-6 C36H54O9
    2α,3β,23-triacetylmadecassic acid
    —— 2-isobutyrylamino-6-chloro-9-(5-O-benzoyl-2,3-dideoxy-2-fluoro-β-L-threo-pentofuranosyl)purine 255818-76-9 C21H21ClFN5O4
    2-isobutyrylamino-6-chloro-9-(5-O-benzoyl-2,3-dideoxy-2-fluoro-β-L-threo-pentofuranosyl)purine
    —— 2-(4-chlorophenyl)-4-(2-methylpiperidin-1-yl)quinazoline 316125-25-4 C20H20ClN3
    2-(4-chlorophenyl)-4-(2-methylpiperidin-1-yl)quinazoline
    —— 2-chloro-2-methyl-1-nitro-butane 89211-84-7 C5H10ClNO2
    2-chloro-2-methyl-1-nitro-butane
    —— 2-[(2E,6E)-3,7-dimethyl-8-propylsulfanylocta-2,6-dienoxy]oxane 1354779-97-7 C18H32O2S
    2-[(2E,6E)-3,7-dimethyl-8-propylsulfanylocta-2,6-dienoxy]oxane
    —— 2-chloro-8-fluoro-11-(1-methyl-4-piperidyl)-6,11-dihydrodibenzo<b,e>thiepin-11-ol 93698-39-6 C20H21ClFNOS
    2-chloro-8-fluoro-11-(1-methyl-4-piperidyl)-6,11-dihydrodibenzo<b,e>thiepin-11-ol
    —— 2-amino-4,6-dimethyl-N-(4-methylphenyl)pyridine-3-carboxamide 148726-94-7 C15H17N3O
    2-amino-4,6-dimethyl-N-(4-methylphenyl)pyridine-3-carboxamide
    —— (2S,3S)-3-Methyl-2-(2-nitro-phenylsulfanylamino)-pentanoic acid methyl ester 114675-76-2 C13H18N2O4S
    (2S,3S)-3-Methyl-2-(2-nitro-phenylsulfanylamino)-pentanoic acid methyl ester
    —— 2,3-diethyl-4-methylcyclopent-2-enone 1332458-46-4 C10H16O
    2,3-diethyl-4-methylcyclopent-2-enone
    —— 2-(but-3-yn-1-yl)-5,6-dimethoxy-3-methylcyclohexa-2,5-diene-1,4-dione 1416169-99-7 C13H14O4
    2-(but-3-yn-1-yl)-5,6-dimethoxy-3-methylcyclohexa-2,5-diene-1,4-dione
    —— (+/-)-2-ethyl-norborn-5-ene-2<i>exo</i>-carboxylic acid 73873-26-4 C10H14O2
    (+/-)-2-ethyl-norborn-5-ene-2<i>exo</i>-carboxylic acid
    —— 2-methyl-3-((1,2,3,4,5-pentamethylcyclopenta-2,4-dienyl)methyl)-4-phenylcyclopent-2-enone 1207544-82-8 C23H28O
    2-methyl-3-((1,2,3,4,5-pentamethylcyclopenta-2,4-dienyl)methyl)-4-phenylcyclopent-2-enone
    —— 2-(Iodacetylamino)benzonitril 151546-27-9 C9H7IN2O
    2-(Iodacetylamino)benzonitril
    —— 2-[2-(4-{1-[4-(2-ethyl-2H-tetrazol-5-yl)phenyl]-1,2-dimethylpropyl}phenyl)-2-fluoroethyl]pyridine 1094044-28-6 C27H30FN5
    2-[2-(4-{1-[4-(2-ethyl-2H-tetrazol-5-yl)phenyl]-1,2-dimethylpropyl}phenyl)-2-fluoroethyl]pyridine
    —— (2R)-1-[6-[2-[5-(2,2-dimethylbutyl)-1H-imidazol-2-yl]ethyl]pyridin-3-yl]piperidine-2-carboxylic acid 1021987-47-2 C22H32N4O2
    (2R)-1-[6-[2-[5-(2,2-dimethylbutyl)-1H-imidazol-2-yl]ethyl]pyridin-3-yl]piperidine-2-carboxylic acid
    —— (2R,3R,5R,6S)-2-acetoxy-4-(benzyloxycarbonyl)-5,6-diphenyl-3-ethyl-2,3,5,6-tetrahydro-4H-1,4-oxazine 213686-75-0 C28H29NO5
    (2R,3R,5R,6S)-2-acetoxy-4-(benzyloxycarbonyl)-5,6-diphenyl-3-ethyl-2,3,5,6-tetrahydro-4H-1,4-oxazine
    —— 2-[4-(8-methyl-2-oxo-4H-benzo[d][1,3]oxazin-1-yl)-piperidine-1-sulfonyl]-benzoic acid methyl ester 844684-09-9 C22H24N2O6S
    2-[4-(8-methyl-2-oxo-4H-benzo[d][1,3]oxazin-1-yl)-piperidine-1-sulfonyl]-benzoic acid methyl ester
    —— [2-(2-bromo-acetylamino)-4,5,6,7-tetrahydro-benzo[<i>b</i>]thiophen-3-yl]-(4-methoxy-phenyl)-methanone 52824-55-2 C18H18BrNO3S
    [2-(2-bromo-acetylamino)-4,5,6,7-tetrahydro-benzo[<i>b</i>]thiophen-3-yl]-(4-methoxy-phenyl)-methanone
    —— 2-formyl-7-oxo-6-oxa-2-aza-bicyclo[3.2.1]octane-3<i>endo</i>-carboxylic acid methyl ester 59234-51-4 C9H11NO5
    2-formyl-7-oxo-6-oxa-2-aza-bicyclo[3.2.1]octane-3<i>endo</i>-carboxylic acid methyl ester
    —— 2-Benzo[1,3]dioxol-5-yl-4-phenylamino-6-pyridin-2-yl-pyrimidine-5-carbonitrile 64499-23-6 C23H15N5O2
    2-Benzo[1,3]dioxol-5-yl-4-phenylamino-6-pyridin-2-yl-pyrimidine-5-carbonitrile
    —— 2-Dimethylamino-7-methoxy-1,1-pentamethylen-1,2,3,4-tetrahydronaphthalin 60516-26-9 C18H27NO
    2-Dimethylamino-7-methoxy-1,1-pentamethylen-1,2,3,4-tetrahydronaphthalin
    —— 2-[Bis(methylsulfanyl)methylene]-1,5-dimethylcyclopentanol 84333-35-7 C10H18OS2
    2-[Bis(methylsulfanyl)methylene]-1,5-dimethylcyclopentanol
    —— (2-Methoxymethoxy-1-methyl-ethoxy)-acetic acid 167778-38-3 C7H14O5
    (2-Methoxymethoxy-1-methyl-ethoxy)-acetic acid
    —— 2-(7-Bromo-1-tricyclo[4.1.0.02,7]heptanyl)adamantan-2-ol 862694-20-0 C17H23BrO
    2-(7-Bromo-1-tricyclo[4.1.0.02,7]heptanyl)adamantan-2-ol
    —— 2-biphenyl-4-yl-imidazo[1,2-a]pyridine-6-carboxylic acid methyl ester 1051397-18-2 C21H16N2O2
    2-biphenyl-4-yl-imidazo[1,2-a]pyridine-6-carboxylic acid methyl ester
    —— (2S,5R)-N-(5-morpholin-4-ylpyridin-2-yl)-7-oxo-6-(sulfooxy)-1,6-diazabicyclo[3.2.1]octane-2-carboxamide 1174019-74-9 C16H21N5O7S
    (2S,5R)-N-(5-morpholin-4-ylpyridin-2-yl)-7-oxo-6-(sulfooxy)-1,6-diazabicyclo[3.2.1]octane-2-carboxamide
    —— (2S,4S,5R)-2,5-Dimethyl-4-phenyl-1-(3-phenyl-prop-2-ynyl)-piperidin-4-ol 57386-35-3 C22H25NO
    (2S,4S,5R)-2,5-Dimethyl-4-phenyl-1-(3-phenyl-prop-2-ynyl)-piperidin-4-ol
    —— 2-(4-methoxyphenyl)-2-[(E)-2-phenylethenyl]oxirane 124558-52-7 C17H16O2
    2-(4-methoxyphenyl)-2-[(E)-2-phenylethenyl]oxirane
    —— 2,2-dichloro-N-{1-fluoromethyl-2-hydroxy-2-[4-(6-hydroxymethyl-pyridin-3-yl)-phenyl]-ethyl}-acetamide 1400740-30-8 C17H17Cl2FN2O3
    2,2-dichloro-N-{1-fluoromethyl-2-hydroxy-2-[4-(6-hydroxymethyl-pyridin-3-yl)-phenyl]-ethyl}-acetamide
    —— (2S,3S,4S,5S,6E)-2,4,6-trimethyl-1-phenylmethoxy-6-nonene-3,5-diol 140870-57-1 C19H30O3
    (2S,3S,4S,5S,6E)-2,4,6-trimethyl-1-phenylmethoxy-6-nonene-3,5-diol
    —— 2-(dimethyl(3-((3,3,5,5,6,6,7,7,8,8,9,9,10,10,10-pentadecafluorodecyl)sulfonamido)propyl)ammonio)acetate 1288985-12-5 C17H21F15N2O4S
    2-(dimethyl(3-((3,3,5,5,6,6,7,7,8,8,9,9,10,10,10-pentadecafluorodecyl)sulfonamido)propyl)ammonio)acetate
    —— 2-(benzoylmethylthio)-3-acetamido-6-chloropyridine 35070-17-8 C15H13ClN2O2S
    2-(benzoylmethylthio)-3-acetamido-6-chloropyridine
    —— 2-(1-Amino-2-p-tolyl-ethylidene)-malonic acid dimethyl ester 54672-26-3 C14H17NO4
    2-(1-Amino-2-p-tolyl-ethylidene)-malonic acid dimethyl ester
    —— 2-heptafluoropropyl-4-(1,2,2,2-tetrafluoro-1-heptafluoropropoxy-ethyl)-6-trifluoromethyl-[1,3,5]triazine 66010-55-7 C12F21N3O
    2-heptafluoropropyl-4-(1,2,2,2-tetrafluoro-1-heptafluoropropoxy-ethyl)-6-trifluoromethyl-[1,3,5]triazine
    —— 2,3,4,5-tetrahydro-1-hydroxy-7,8-dimethoxy-6-(4-methoxyphenyl)-1H-3-benzazepine 103692-42-8 C19H23NO4
    2,3,4,5-tetrahydro-1-hydroxy-7,8-dimethoxy-6-(4-methoxyphenyl)-1H-3-benzazepine
    —— (2S,7S,Z)-N1,N8-bis((S)-6-amino-1-((3-aminopropyl)amino)-1-oxohexan-2-yl)-2,7-bis((S)-1-(2-ethylbenzo[g]quinoline-3-carbonyl)-N-methylpyrrolidine-2-carboxamido)oct-4-enediamide 1384257-23-1 C70H94N14O8
    (2S,7S,Z)-N1,N8-bis((S)-6-amino-1-((3-aminopropyl)amino)-1-oxohexan-2-yl)-2,7-bis((S)-1-(2-ethylbenzo[g]quinoline-3-carbonyl)-N-methylpyrrolidine-2-carboxamido)oct-4-enediamide
    —— 2,3,5,6-Tetrachloro-4-isopropylsulfanylcarbonyl-benzoic acid methyl ester 16231-73-5 C12H10Cl4O3S
    2,3,5,6-Tetrachloro-4-isopropylsulfanylcarbonyl-benzoic acid methyl ester
    —— (2-Chloro-phenyl)-carbamic acid cyano-dimethyl-methyl ester 3519-55-9 C11H11ClN2O2
    (2-Chloro-phenyl)-carbamic acid cyano-dimethyl-methyl ester
    —— 2-Cyclohexylguanidino-4-hydroxy-5-ethoxycarbonylmethyl-pyrimidin 16462-33-2 C15H23N5O3
    2-Cyclohexylguanidino-4-hydroxy-5-ethoxycarbonylmethyl-pyrimidin
    —— 2-(4-chlorophenyl)-4,5,6,7-tetradeuterio-1H-indole 1379511-83-7 C14H10ClN
    2-(4-chlorophenyl)-4,5,6,7-tetradeuterio-1H-indole
    —— 2,9-dimethyl-3,10-diphenyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene tetrahydrobromide 100927-35-3 4BrH*C24H28N4
    2,9-dimethyl-3,10-diphenyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene tetrahydrobromide
    —— 2,5,8,11,14,17,20,23,26,29,32,35-dodecaoxa-1(2,5),19(5,2)-dipyridinacyclohexatriacontaphane-18,36-dione 75506-55-7 C32H46N2O14
    2,5,8,11,14,17,20,23,26,29,32,35-dodecaoxa-1(2,5),19(5,2)-dipyridinacyclohexatriacontaphane-18,36-dione
    —— 2,5,5,7-tetramethyl-4,5,6,7-tetrahydro-benzothiazole 91341-34-3 C11H17NS
    2,5,5,7-tetramethyl-4,5,6,7-tetrahydro-benzothiazole
    —— 2-amino-5-hydroxy-7-phenyl[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile 1254105-38-8 C12H8N6O
    2-amino-5-hydroxy-7-phenyl[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile