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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 2,3,4,5,6-Pentafluor-6-pentafluorbenzoyloxy-cyclohexadien-(2,4)-on-(1) 60067-72-3 C13F10O3
    2,3,4,5,6-Pentafluor-6-pentafluorbenzoyloxy-cyclohexadien-(2,4)-on-(1)
    —— 2-[<sup>37</sup><i>Cl</i>]chloro-propane 89603-77-0 C3H7Cl
    2-[<sup>37</sup><i>Cl</i>]chloro-propane
    —— 2-Amino-3-cyano-5-styrylpyrazin 50627-24-2 C13H10N4
    2-Amino-3-cyano-5-styrylpyrazin
    —— 2-(4-Piperidin-1-ylmethyl-[1,3]dithiolan-2-yl)-cyclohexanone 53491-66-0 C15H25NOS2
    2-(4-Piperidin-1-ylmethyl-[1,3]dithiolan-2-yl)-cyclohexanone
    —— 2-(2,5-Diacetoxy-phenylamino)-pentanedioic acid 68561-85-3 C15H17NO8
    2-(2,5-Diacetoxy-phenylamino)-pentanedioic acid
    —— 2-(2-Methoxy-phenylamino)-benzoic acid [1-phenyl-eth-(E)-ylidene]-hydrazide 58153-75-6 C22H21N3O2
    2-(2-Methoxy-phenylamino)-benzoic acid [1-phenyl-eth-(E)-ylidene]-hydrazide
    —— 2-Phenyl-5-trifluoracetyl-furan 34773-54-1 C12H7F3O2
    2-Phenyl-5-trifluoracetyl-furan
    —— 2-(4-((3′S,9′S)-9′-(tert-butyldimethylsilyloxy)-2-iodo-4′-isopropyl-7′,7′-dimethyl-6′,7′,8′,9′-tetrahydro-3′H-spiro[cyclopentane-1,1′-furo[3,4-c]quinoline]-3′-yl)phenyl)-2-methylpropanenitrile 1332488-71-7 C36H51IN2O2Si
    2-(4-((3′S,9′S)-9′-(tert-butyldimethylsilyloxy)-2-iodo-4′-isopropyl-7′,7′-dimethyl-6′,7′,8′,9′-tetrahydro-3′H-spiro[cyclopentane-1,1′-furo[3,4-c]quinoline]-3′-yl)phenyl)-2-methylpropanenitrile
    —— 2-(2-Allyl-5-tert-butyl-phenoxymethyl)-oxirane 55143-16-3 C16H22O2
    2-(2-Allyl-5-tert-butyl-phenoxymethyl)-oxirane
    —— ((2R,3R)-2-Chloromethyl-3-phenyl-oxiranyl)-triphenyl-silane 54562-19-5 C27H23ClOSi
    ((2R,3R)-2-Chloromethyl-3-phenyl-oxiranyl)-triphenyl-silane
    —— 2-(1-Methyl-1H-imidazol-2-ylsulfanyl)-acetamide; hydrochloride 50970-53-1 C6H9N3OS*ClH
    2-(1-Methyl-1H-imidazol-2-ylsulfanyl)-acetamide; hydrochloride
    —— 2-(4-Pyridyl)-2-propyl-2,4-dinitrophenyl-sulfid 42362-46-9 C14H13N3O4S
    2-(4-Pyridyl)-2-propyl-2,4-dinitrophenyl-sulfid
    —— (2R,3R)-2,3-epoxy-N,N-bis-phenacylbutyramide 129664-92-2 C20H19NO4
    (2R,3R)-2,3-epoxy-N,N-bis-phenacylbutyramide
    —— 2-(1-cyclohexyl-3,4-dihydroisoquinolin-2(1H)-yl)-2-oxoethanamine 1085538-57-3 C17H24N2O
    2-(1-cyclohexyl-3,4-dihydroisoquinolin-2(1H)-yl)-2-oxoethanamine
    —— 2-(4-chloro-2-methyl-phenylsulfanyl)-butyric acid 100126-84-9 C11H13ClO2S
    2-(4-chloro-2-methyl-phenylsulfanyl)-butyric acid
    —— 2-Methylthio-5,6-dihydro-4(1H)-pyrimidinon-hydrojodid 100185-55-5 C5H8N2OS*HI
    2-Methylthio-5,6-dihydro-4(1H)-pyrimidinon-hydrojodid
    —— {2-hydroxyimino-2-[4-(pyridin-4-ylcarbamoyl)-phenyl]-ethyl}-carbamic acid benzyl ester 920273-77-4 C22H20N4O4
    {2-hydroxyimino-2-[4-(pyridin-4-ylcarbamoyl)-phenyl]-ethyl}-carbamic acid benzyl ester
    —— 2-benzyl-5-(4-bromo-phenyl)-3-(2,2-dimethyl-3a,6a-dihydro-furo[2,3-d][1,3]dioxol-5-yl)-4,6-dioxo-octahydro-pyrrolo[3,4-c]pyrrole-1-carboxylic acid ethyl ester 1202788-83-7 C29H29BrN2O7
    2-benzyl-5-(4-bromo-phenyl)-3-(2,2-dimethyl-3a,6a-dihydro-furo[2,3-d][1,3]dioxol-5-yl)-4,6-dioxo-octahydro-pyrrolo[3,4-c]pyrrole-1-carboxylic acid ethyl ester
    —— 2-Acetyl-4-ethyl-7-oxo-4,7-dihydro-thieno[3,2-b]pyridine-6-carboxylic acid 134890-90-7 C12H11NO4S
    2-Acetyl-4-ethyl-7-oxo-4,7-dihydro-thieno[3,2-b]pyridine-6-carboxylic acid
    —— 2-trifluoromethyl indophenazine 93500-59-5 C15H8F3N3
    2-trifluoromethyl indophenazine
    —— 2,5-dioxo-13-fluoro-9,14,17,20,20-pentamethyl-24-(trimethylsilyl)-9(E),13(Z),17(E)-tetracosatrien-22-yne 144374-94-7 C32H53FO2Si
    2,5-dioxo-13-fluoro-9,14,17,20,20-pentamethyl-24-(trimethylsilyl)-9(E),13(Z),17(E)-tetracosatrien-22-yne
    —— 2-methyl-5-m-tolyl-thiazole-4-carboxylic acid cyclopropylmethyl-[2-(3,4-dimethoxy-phenyl)-2-hydroxy-ethyl]-amide 1223565-40-9 C26H30N2O4S
    2-methyl-5-m-tolyl-thiazole-4-carboxylic acid cyclopropylmethyl-[2-(3,4-dimethoxy-phenyl)-2-hydroxy-ethyl]-amide
    —— (2S,3S,4R)-2-azido-3,4-di-O-benzyl-1-O-[2,3,4-tri-O-benzyl-6-O-(2-benzyloxyethyl)-α-D-galactopyranosyl]octadecane-1,3,4-triol 1435266-59-3 C68H87N3O9
    (2S,3S,4R)-2-azido-3,4-di-O-benzyl-1-O-[2,3,4-tri-O-benzyl-6-O-(2-benzyloxyethyl)-α-D-galactopyranosyl]octadecane-1,3,4-triol
    —— 2-Hexylamino-3-oxo-pentanenitrile 19351-73-6 C11H20N2O
    2-Hexylamino-3-oxo-pentanenitrile
    —— 2-Iodo-7-(7-iodo-9,9-dimethylfluoren-2-yl)-9,9-dimethylfluorene 400607-26-3 C30H24I2
    2-Iodo-7-(7-iodo-9,9-dimethylfluoren-2-yl)-9,9-dimethylfluorene
    —— 2,2,4,6,6-Pentachloro-5-chloromethyl-3-dichloromethyl-5-methyl-3-cyclohexanone 111811-52-0 C9H6Cl8O
    2,2,4,6,6-Pentachloro-5-chloromethyl-3-dichloromethyl-5-methyl-3-cyclohexanone
    —— 2-(2-hydroxy-5-methyl-phenyl)-1-phenyl-propan-1-one 131516-82-0 C16H16O2
    2-(2-hydroxy-5-methyl-phenyl)-1-phenyl-propan-1-one
    —— 2-Ethylamino-4-<5-fluor-2-methoxyphenyl>-thiazol 1496-22-6 C12H13FN2OS
    2-Ethylamino-4-<5-fluor-2-methoxyphenyl>-thiazol
    —— 2-Methyl-acrylic acid 4-(2,2-dicyano-1-phenyl-vinyl)-phenyl ester 72892-26-3 C20H14N2O2
    2-Methyl-acrylic acid 4-(2,2-dicyano-1-phenyl-vinyl)-phenyl ester
    —— 2,8-Bis-(methylthio)phenazin 53601-58-4 C14H12N2S2
    2,8-Bis-(methylthio)phenazin
    —— 2-(3-v-Triazolo<1,5-a>pyridyl)benzaldehyd 42031-39-0 C13H9N3O
    2-(3-v-Triazolo<1,5-a>pyridyl)benzaldehyd
    —— (2R,3R)-2-hydroxy-3-[(1-{2'-[(isoxazole-5-carbonyl)sulfamoyl]biphenyl-4-ylmethyl}-5-propyl-1H-pyrazole-3-carbonyl)amino]-4-phenylbutyric acid 1260232-27-6 C34H33N5O8S
    (2R,3R)-2-hydroxy-3-[(1-{2'-[(isoxazole-5-carbonyl)sulfamoyl]biphenyl-4-ylmethyl}-5-propyl-1H-pyrazole-3-carbonyl)amino]-4-phenylbutyric acid
    —— 2-((4E,8E,12E,16E,20E,24E,28E)-1-Methoxy-1,5,9,13,17,21,25,29,33-nonamethyl-tetratriaconta-4,8,12,16,20,24,28,32-octaenyl)-6,7-dimethyl-2,3-dihydro-benzofuran-5-ol 56001-32-2 C54H84O3
    2-((4E,8E,12E,16E,20E,24E,28E)-1-Methoxy-1,5,9,13,17,21,25,29,33-nonamethyl-tetratriaconta-4,8,12,16,20,24,28,32-octaenyl)-6,7-dimethyl-2,3-dihydro-benzofuran-5-ol
    —— 2-(2-Benzyloxycarbonylamino-acetylamino)-3-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-butyric acid methyl ester 53634-15-4 C21H30N2O11
    2-(2-Benzyloxycarbonylamino-acetylamino)-3-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-butyric acid methyl ester
    —— 2-(o-Nitrobenzal)-7-methylindanon 52146-10-8 C17H13NO3
    2-(o-Nitrobenzal)-7-methylindanon
    —— 2,3,4,1',3',4',6'-Hepta-O-acetyl-6-chlor-6-deoxysaccharose 54429-73-1 C26H35ClO17
    2,3,4,1',3',4',6'-Hepta-O-acetyl-6-chlor-6-deoxysaccharose
    —— 2a-Methyl-2,2-diphenyl-2a,7a-dihydro-2H-1,7-dioxa-cyclobuta[a]indene 55038-03-4 C22H18O2
    2a-Methyl-2,2-diphenyl-2a,7a-dihydro-2H-1,7-dioxa-cyclobuta[a]indene
    —— 2-(R)-2-Deoxy-2-C-methyl-3,5-di-O-p-toluyl-erythro-D-pentono-1,4-lacton 25137-79-5 C22H22O6
    2-(R)-2-Deoxy-2-C-methyl-3,5-di-O-p-toluyl-erythro-D-pentono-1,4-lacton
    —— 2-methyl-3-[3-(7(9)<i>H</i>-purin-6-yl)-ureido]-propionic acid 38479-56-0 C10H12N6O3
    2-methyl-3-[3-(7(9)<i>H</i>-purin-6-yl)-ureido]-propionic acid
    —— 2-(4-<i>tert</i>-butyl-benzylsulfanyl)-1-methyl-5-nitro-1<i>H</i>-imidazole 50969-42-1 C15H19N3O2S
    2-(4-<i>tert</i>-butyl-benzylsulfanyl)-1-methyl-5-nitro-1<i>H</i>-imidazole
    —— 2-[4-(<i>O</i><sup>3</sup>,<i>O</i><sup>5</sup>-diacetyl-β-<i>D</i>-<i>erythro</i>-2-deoxy-pentofuranosyl)-5-methyl-2-oxo-3,4-dihydro-2<i>H</i>-pyrimidin-4-ylidene]-3-mercapto-propionitrile 54917-65-6 C17H21N3O6S
    2-[4-(<i>O</i><sup>3</sup>,<i>O</i><sup>5</sup>-diacetyl-β-<i>D</i>-<i>erythro</i>-2-deoxy-pentofuranosyl)-5-methyl-2-oxo-3,4-dihydro-2<i>H</i>-pyrimidin-4-ylidene]-3-mercapto-propionitrile
    —— 2,4-Bis-(N-methyl-N-formyl-aminomethyl)chinolin 30721-97-2 C15H17N3O2
    2,4-Bis-(N-methyl-N-formyl-aminomethyl)chinolin
    —— 2-hydroxy-thiobenzoic acid <i>S</i>-(4-chloro-phenyl ester) 59383-66-3 C13H9ClO2S
    2-hydroxy-thiobenzoic acid <i>S</i>-(4-chloro-phenyl ester)
    —— 2-Isopropylidene-3,3-dimethyl-spiro[3.5]nonan-1-one 50515-93-0 C14H22O
    2-Isopropylidene-3,3-dimethyl-spiro[3.5]nonan-1-one
    —— 2-Benzyl-6,7-dimethoxy-naphthalene-1,3-diol 60278-64-0 C19H18O4
    2-Benzyl-6,7-dimethoxy-naphthalene-1,3-diol
    —— 2-<1,2-Dihydro-4-(methylsulfonyl)-2-(1-phthalazinyl)-1-phthalazinyl>-propiophenon 24966-57-2 C26H22N4O3S
    2-<1,2-Dihydro-4-(methylsulfonyl)-2-(1-phthalazinyl)-1-phthalazinyl>-propiophenon
    —— 2-[3-(3-Benzyloxycarbonylamino-3-tert-butoxycarbonyl-propionylamino)-3-tert-butoxycarbonyl-propionylamino]-succinic acid di-tert-butyl ester 60079-18-7 C36H55N3O12
    2-[3-(3-Benzyloxycarbonylamino-3-tert-butoxycarbonyl-propionylamino)-3-tert-butoxycarbonyl-propionylamino]-succinic acid di-tert-butyl ester
    —— 2-(p-Tolylmercapto)-3,5,7-trideutero-tropon 50702-28-8 C14H12OS
    2-(p-Tolylmercapto)-3,5,7-trideutero-tropon
    —— 2-(4-Butoxy-phenyl)-3-(dimethyl-phosphinoyl)-propionic acid ethyl ester 53478-20-9 C17H27O4P
    2-(4-Butoxy-phenyl)-3-(dimethyl-phosphinoyl)-propionic acid ethyl ester
    —— 2-Methyl-acrylic acid 3-carbamimidoylsulfanyl-2-hydroxy-propyl ester; compound with benzoic acid 59289-23-5 C7H6O2*C8H14N2O3S
    2-Methyl-acrylic acid 3-carbamimidoylsulfanyl-2-hydroxy-propyl ester; compound with benzoic acid