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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 2,5-Bis-allylamino-cyclohexa-1,4-diene-1,4-dicarboxylic acid dibutyl ester 136286-11-8 C22H34N2O4
    2,5-Bis-allylamino-cyclohexa-1,4-diene-1,4-dicarboxylic acid dibutyl ester
    —— 2-Methyl-3-ethyl-4,5-dicyanopyrazin 36597-38-3 C9H8N4
    2-Methyl-3-ethyl-4,5-dicyanopyrazin
    —— 2-Dichloromethyl-4-(2-fluoro-phenyl)-6-iodo-1,2-dihydro-quinazoline 3-oxide 34932-86-0 C15H10Cl2FIN2O
    2-Dichloromethyl-4-(2-fluoro-phenyl)-6-iodo-1,2-dihydro-quinazoline 3-oxide
    —— 2-(6-methoxy-benzofuran-2-yl)-1-methyl-1<i>H</i>-benzoimidazole-5-sulfonic acid dimethylamide 66315-48-8 C19H19N3O4S
    2-(6-methoxy-benzofuran-2-yl)-1-methyl-1<i>H</i>-benzoimidazole-5-sulfonic acid dimethylamide
    —— 2-[4-(4-Fluoro-phenylsulfanyl)-phenyl]-propionic acid 41604-10-8 C15H13FO2S
    2-[4-(4-Fluoro-phenylsulfanyl)-phenyl]-propionic acid
    —— 2-(4-fluoro-phenyl)-7,7-dioxo-tetrahydro-7λ<sup>6</sup>-imidazo[5,1-<i>c</i>][1,4]thiazine-1,3-dione 72850-03-4 C12H11FN2O4S
    2-(4-fluoro-phenyl)-7,7-dioxo-tetrahydro-7λ<sup>6</sup>-imidazo[5,1-<i>c</i>][1,4]thiazine-1,3-dione
    —— [2-(3-Methylcarbamoyl-5-nitro-benzoylamino)-acetylamino]-acetic acid 60793-58-0 C13H14N4O7
    [2-(3-Methylcarbamoyl-5-nitro-benzoylamino)-acetylamino]-acetic acid
    —— 2-isopropyl-10-phenyl-6,7,8,9-tetrahydro-5<i>H</i>-thiazolo[5',4':5,6]pyrido[3,2-<i>c</i>]azepine 69314-98-3 C19H21N3S
    2-isopropyl-10-phenyl-6,7,8,9-tetrahydro-5<i>H</i>-thiazolo[5',4':5,6]pyrido[3,2-<i>c</i>]azepine
    —— (2R,2’R)-2-(2-benzyloxymethyl-5-methoxy-7-methylchroman-2-yl)-2-(tertbutyldimethylsilyloxy)ethan-1-ol 1616779-91-9 C27H40O5Si
    (2R,2’R)-2-(2-benzyloxymethyl-5-methoxy-7-methylchroman-2-yl)-2-(tertbutyldimethylsilyloxy)ethan-1-ol
    —— (2R,5S)-2-tert-Butyl-5-[3-(tert-butyl-dimethyl-silanyloxy)-propyl]-5-methyl-[1,3]dioxolan-4-one 186605-15-2 C17H34O4Si
    (2R,5S)-2-tert-Butyl-5-[3-(tert-butyl-dimethyl-silanyloxy)-propyl]-5-methyl-[1,3]dioxolan-4-one
    —— 2-methoxy-N-(3-{4-[4-(pyridin-2-yloxy)-phenylamino]-quinazolin-6-yl}-prop-2-ynyl)-acetamide 383432-01-7 C25H21N5O3
    2-methoxy-N-(3-{4-[4-(pyridin-2-yloxy)-phenylamino]-quinazolin-6-yl}-prop-2-ynyl)-acetamide
    —— 2-Chloro-N-[3-(dimethylamino)-1,4-dihydro-1,4-dioxo-2-naphthalenyl]-N-(2-methoxyethyl)acetamide 497818-38-9 C17H19ClN2O4
    2-Chloro-N-[3-(dimethylamino)-1,4-dihydro-1,4-dioxo-2-naphthalenyl]-N-(2-methoxyethyl)acetamide
    —— 2-(Benzolsulfonamido)-pyrimidin-<2-14C> 41711-52-8 C10H9N3O2S
    2-(Benzolsulfonamido)-pyrimidin-<2-14C>
    —— 2,6-Dinitro-4-sulfophenyl-N-propoxyamin 56105-84-1 C9H10N3O8S*K
    2,6-Dinitro-4-sulfophenyl-N-propoxyamin
    —— 2-Methyl-1-trimethylsilanyl-but-3-yne-2-sulfonic acid; compound with 2-benzyl-isothiourea 65284-63-1 C8H10N2S*C8H16O3SSi
    2-Methyl-1-trimethylsilanyl-but-3-yne-2-sulfonic acid; compound with 2-benzyl-isothiourea
    —— 2-<1>Naphthyl-3.3-diphenyl-cyclopropan-1-carbonsaeure-benzhydrylester 62679-30-5 C39H30O2
    2-<1>Naphthyl-3.3-diphenyl-cyclopropan-1-carbonsaeure-benzhydrylester
    —— 2-(4-ethoxy-benzothiazol-2-ylimino)-3-ethyl-5-methyl-thiazolidin-4-one 52106-05-5 C15H17N3O2S2
    2-(4-ethoxy-benzothiazol-2-ylimino)-3-ethyl-5-methyl-thiazolidin-4-one
    —— 2-(2,4-Dichlorphenyl)-3-(p-2'-methylbutoxyphenyl)-4-thiazolidinon 53085-36-2 C20H21Cl2NO2S
    2-(2,4-Dichlorphenyl)-3-(p-2'-methylbutoxyphenyl)-4-thiazolidinon
    —— 2-Morpholin-4-yl-5-nitro-3H-quinazoline-4-thione 41078-37-9 C12H12N4O3S
    2-Morpholin-4-yl-5-nitro-3H-quinazoline-4-thione
    —— 2-[2-[2-[2-(2-phenylmethoxyethoxy)ethoxy]ethoxy]ethoxy]acetaldehyde 86259-86-1 C17H26O6
    2-[2-[2-[2-(2-phenylmethoxyethoxy)ethoxy]ethoxy]ethoxy]acetaldehyde
    —— 2-pent-4-en-2-ynyl-2-(tetrahydro-furan-3-yl)-malonic acid dimethyl ester 1215127-41-5 C14H18O5
    2-pent-4-en-2-ynyl-2-(tetrahydro-furan-3-yl)-malonic acid dimethyl ester
    —— 2,3,4-Trimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carbonyl chloride 55855-81-7 C12H13ClO4
    2,3,4-Trimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carbonyl chloride
    —— 2,3,3,4-Tetradeuterio-2,4-pentandiol 41866-23-3 C5H12O2
    2,3,3,4-Tetradeuterio-2,4-pentandiol
    —— 2-amino-5-methyl-4-nitromethyl-4,5-dihydro-furan-3-carbonitrile 55260-91-8 C7H9N3O3
    2-amino-5-methyl-4-nitromethyl-4,5-dihydro-furan-3-carbonitrile
    —— (2R,3S,4R,5R,6R)-5-Amino-2-aminomethyl-6-[(1R,2S,3S,4R,6S)-4,6-diamino-2-hydroxy-3-((2R,3R,4S,6R)-3-hydroxy-6-methyl-4-methylamino-tetrahydro-pyran-2-yloxy)-cyclohexyloxy]-tetrahydro-pyran-3,4-diol 54937-39-2 C19H39N5O8
    (2R,3S,4R,5R,6R)-5-Amino-2-aminomethyl-6-[(1R,2S,3S,4R,6S)-4,6-diamino-2-hydroxy-3-((2R,3R,4S,6R)-3-hydroxy-6-methyl-4-methylamino-tetrahydro-pyran-2-yloxy)-cyclohexyloxy]-tetrahydro-pyran-3,4-diol
    —— 2,2,3,3,5,5,6,6,7,7-Decafluoro-1-methanesulfonyl-bicyclo[2.2.1]heptane 42303-12-8 C8H4F10O2S
    2,2,3,3,5,5,6,6,7,7-Decafluoro-1-methanesulfonyl-bicyclo[2.2.1]heptane
    —— (2S)-1-[(6-methyl-3-pyridinyl)carbonyl]-2-piperidinecarboxamide 648422-07-5 C13H17N3O2
    (2S)-1-[(6-methyl-3-pyridinyl)carbonyl]-2-piperidinecarboxamide
    —— 2-cyano-3-(5-guanidino-1<i>H</i>-[1,2,3]triazol-4-yl)-acrylic acid ethyl ester 50533-32-9 C9H11N7O2
    2-cyano-3-(5-guanidino-1<i>H</i>-[1,2,3]triazol-4-yl)-acrylic acid ethyl ester
    —— 2-{[4-(hydroxyimino-methyl)-2-phenyl-2<i>H</i>-pyrazol-3-ylamino]-methylene}-3-oxo-butyric acid ethyl ester 62564-85-6 C17H18N4O4
    2-{[4-(hydroxyimino-methyl)-2-phenyl-2<i>H</i>-pyrazol-3-ylamino]-methylene}-3-oxo-butyric acid ethyl ester
    —— 2-Methylcyclohexyl-n-nonyl-ether 57192-87-7 C16H32O
    2-Methylcyclohexyl-n-nonyl-ether
    —— [2-(Ethoxy-phenyl-phosphinoyloxy)-ethyl]-methyl-pentyl-sulfonium 132742-66-6 C16H28O3PS
    [2-(Ethoxy-phenyl-phosphinoyloxy)-ethyl]-methyl-pentyl-sulfonium
    —— 2-((2-bromoethoxy)(dodecyloxy)phosphoryloxy)ethoxy-β-apo-8‘-carotenoate 1609100-67-5 C46H72BrO6P
    2-((2-bromoethoxy)(dodecyloxy)phosphoryloxy)ethoxy-β-apo-8‘-carotenoate
    —— 2,3-dihydro-2-phenyl-4H-thiopyrano[2,3-c]pyridin-4-one 1449491-77-3 C14H11NOS
    2,3-dihydro-2-phenyl-4H-thiopyrano[2,3-c]pyridin-4-one
    —— 2-(2-ethylcarbamoyloxy-ethyl)-1,1-dioxo-1,2-dihydro-1λ<sup>6</sup>-benzo[<i>d</i>]isothiazol-3-one 52541-26-1 C12H14N2O5S
    2-(2-ethylcarbamoyloxy-ethyl)-1,1-dioxo-1,2-dihydro-1λ<sup>6</sup>-benzo[<i>d</i>]isothiazol-3-one
    —— 2,3-Dimethyl-2-phenyl-1,2,3,4-tetrahydro-benzo[d][1,3]azaphosphinine; hydriodide 54006-24-5 C16H18NP*HI
    2,3-Dimethyl-2-phenyl-1,2,3,4-tetrahydro-benzo[d][1,3]azaphosphinine; hydriodide
    —— 2-methoxy-1,4-dimethyl-3,5-diphenyl-1,2,3,4-tetrahydro-pyrazine 40312-94-5 C19H22N2O
    2-methoxy-1,4-dimethyl-3,5-diphenyl-1,2,3,4-tetrahydro-pyrazine
    —— 2-Benzylamin-5-isopropylpyrimidindion-4,6 40262-31-5 C14H17N3O2
    2-Benzylamin-5-isopropylpyrimidindion-4,6
    —— 2-(3-isobutyl-2-oxo-2<i>H</i>-pyrazin-1-yl)-4-methyl-pentanoic acid 42352-63-6 C14H22N2O3
    2-(3-isobutyl-2-oxo-2<i>H</i>-pyrazin-1-yl)-4-methyl-pentanoic acid
    —— 2-benzylideneamino-5,8-diphenyl-5,8-dihydro-[1,2,4]triazolo[1,2-<i>a</i>]pyridazine-1,3-dione 57964-89-3 C25H20N4O2
    2-benzylideneamino-5,8-diphenyl-5,8-dihydro-[1,2,4]triazolo[1,2-<i>a</i>]pyridazine-1,3-dione
    —— 2<i>t</i>-(biphenyl-4-carbonyl)-1-isopropyl-5<i>c</i>-thiophen-2-yl-pyrrolidine-3<i>r</i>,4<i>c</i>-dicarboxylic acid anhydride 29074-57-5 C26H23NO4S
    2<i>t</i>-(biphenyl-4-carbonyl)-1-isopropyl-5<i>c</i>-thiophen-2-yl-pyrrolidine-3<i>r</i>,4<i>c</i>-dicarboxylic acid anhydride
    —— 2-Methyl-2-(1-chloro-2-naphthyl)-1,3-indandion 32931-19-4 C20H13ClO2
    2-Methyl-2-(1-chloro-2-naphthyl)-1,3-indandion
    —— (22R)-2β,3β,14,22,25-Pentahydroxy-5α-cholest-7-en-6-on 24559-98-6 C27H44O6
    (22R)-2β,3β,14,22,25-Pentahydroxy-5α-cholest-7-en-6-on
    —— 2-Ethylimino-5-(p-nitro-phenyl)-oxazolidin 24288-80-0 C11H13N3O3
    2-Ethylimino-5-(p-nitro-phenyl)-oxazolidin
    —— (2,3-Dihydroxy-butyl)-methyl-phosphinic acid isopropyl ester 31738-64-4 C8H19O4P
    (2,3-Dihydroxy-butyl)-methyl-phosphinic acid isopropyl ester
    —— 2-(1-acetoxy-vinyl)-3,4-dimethyl-4<i>H</i>-benzo[<i>f</i>][1,4]thiazepin-5-one 27468-07-1 C15H15NO3S
    2-(1-acetoxy-vinyl)-3,4-dimethyl-4<i>H</i>-benzo[<i>f</i>][1,4]thiazepin-5-one
    —— 2-<2-Methoxy-phenylcarbamoyl>-2-<2-(4-methyl-piperazino)-aethyl>-5-aethyl-piperidin 100087-81-8 C22H36N4O2
    2-<2-Methoxy-phenylcarbamoyl>-2-<2-(4-methyl-piperazino)-aethyl>-5-aethyl-piperidin
    —— 2,3,4,5-Tetrahydro-3-(2-hydroxyethyl)-1-(1H-imidazol-4-ylmethyl)-4-(1-naphthalenylcarbonyl)-1H-1,4-benzodiazepine, trifluoroacetate 865445-04-1 C2HF3O2*C26H26N4O2
    2,3,4,5-Tetrahydro-3-(2-hydroxyethyl)-1-(1H-imidazol-4-ylmethyl)-4-(1-naphthalenylcarbonyl)-1H-1,4-benzodiazepine, trifluoroacetate
    —— 2-methylthio-pyrimidine-5-carboxylic acid {1-[4-(4-methoxy-2-trifluoromethyl-phenoxy)-benzylcarbamoyl]-cyclopropyl}-amide 1126632-34-5 C25H23F3N4O4S
    2-methylthio-pyrimidine-5-carboxylic acid {1-[4-(4-methoxy-2-trifluoromethyl-phenoxy)-benzylcarbamoyl]-cyclopropyl}-amide
    —— 2-nitro-5-(4-nitro-phenylsulfanylmethyl)-furan 40940-29-2 C16H20O4
    2-nitro-5-(4-nitro-phenylsulfanylmethyl)-furan
    —— (2R)-N-[(1R,2S)-2-hydroxy-3-cyclopenten-1-oyl]bornane-10,2-sultam 474882-25-2 C16H23NO4S
    (2R)-N-[(1R,2S)-2-hydroxy-3-cyclopenten-1-oyl]bornane-10,2-sultam