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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 2-(3-fluoronaphthalen-2-yl)-1,4,5,6-tetrahydropyrimidine 1394236-05-5 C14H13FN2
    2-(3-fluoronaphthalen-2-yl)-1,4,5,6-tetrahydropyrimidine
    —— 2-formylbutadienetricarbonyliron 106760-95-6 C8H6FeO4
    2-formylbutadienetricarbonyliron
    —— 2-[[5-chloro-1-(phenylsulfonyl)-1H-indol-2-yl]methoxy]propanoic acid 927962-03-6 C18H16ClNO5S
    2-[[5-chloro-1-(phenylsulfonyl)-1H-indol-2-yl]methoxy]propanoic acid
    —— 2-(3-Methylbut-2-enylthio)aniline 137411-46-2 C11H15NS
    2-(3-Methylbut-2-enylthio)aniline
    —— 2-ethyl-9-oxo-6,9-dihydro-2<i>H</i>-pyrazolo[3,4-<i>f</i>]quinoline-8-carboxylic acid 65642-42-4 C13H11N3O3
    2-ethyl-9-oxo-6,9-dihydro-2<i>H</i>-pyrazolo[3,4-<i>f</i>]quinoline-8-carboxylic acid
    —— 2-<sup>14</sup>C-Dinitroso-hexahydropyrimidin 65192-64-5 C4H8N4O2
    2-<sup>14</sup>C-Dinitroso-hexahydropyrimidin
    —— (2S,3S,4S,5R,6S)-4,5-Diacetoxy-6-chloro-3-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester 64691-11-8 C12H17ClO8
    (2S,3S,4S,5R,6S)-4,5-Diacetoxy-6-chloro-3-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester
    —— 2,3-Diamino-4-benzyloxy-4-(2,2-dimethyl-[1,3]dioxolan-4-yl)-butan-1-ol 65023-56-5 C16H26N2O4
    2,3-Diamino-4-benzyloxy-4-(2,2-dimethyl-[1,3]dioxolan-4-yl)-butan-1-ol
    —— 2-(N-Methylanilino)-4-isopropyl-3,5-dinitrothiophen 73644-85-6 C14H15N3O4S
    2-(N-Methylanilino)-4-isopropyl-3,5-dinitrothiophen
    —— 2-<Isochinolyl-(1)>-cyclohexanol-(1) 3297-71-0 C15H17NO
    2-<Isochinolyl-(1)>-cyclohexanol-(1)
    —— (2R,3R)-3-Benzyl-4-oxo-1-phenyl-azetidine-2-carboxylic acid ethyl ester 63755-22-6 C19H19NO3
    (2R,3R)-3-Benzyl-4-oxo-1-phenyl-azetidine-2-carboxylic acid ethyl ester
    —— (2R,3S,4R,5R,6R)-2-[(E)-hex-1-enyl]-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxane 135067-80-0 C40H46O5
    (2R,3S,4R,5R,6R)-2-[(E)-hex-1-enyl]-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxane
    —— 2-(1-Acetyl-3-hydroxy-1H-indol-2-ylmethylene)-malonic acid dimethyl ester 139221-23-1 C16H15NO6
    2-(1-Acetyl-3-hydroxy-1H-indol-2-ylmethylene)-malonic acid dimethyl ester
    —— 2-ethynyl-N6-methyl-2'-deoxyadenosine-3',5'-bis(dibenzylphosphate) 691409-53-7 C41H41N5O9P2
    2-ethynyl-N6-methyl-2'-deoxyadenosine-3',5'-bis(dibenzylphosphate)
    —— 2-(1-(4-(diethylamino)phenyl)ethylidene)hydrazine-1-carbothioamide 77068-44-1 C13H20N4S
    2-(1-(4-(diethylamino)phenyl)ethylidene)hydrazine-1-carbothioamide
    —— 2-acetamido-5-(2,5-dihydroxy-3,4,6-trichlorophenyl)thiazole 98326-99-9 C11H7Cl3N2O3S
    2-acetamido-5-(2,5-dihydroxy-3,4,6-trichlorophenyl)thiazole
    —— (2S,3R,4S,5S,6R)-2-[(2R,3S,4S,2'R,3'S)-2,2'-Bis-(3,4-dimethoxy-phenyl)-3,3'-dihydroxy-5,5',7'-trimethoxy-3,4,3',4'-tetrahydro-2H,2'H-[4,8']bichromenyl-7-yloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol 105351-65-3 C43H50O17
    (2S,3R,4S,5S,6R)-2-[(2R,3S,4S,2'R,3'S)-2,2'-Bis-(3,4-dimethoxy-phenyl)-3,3'-dihydroxy-5,5',7'-trimethoxy-3,4,3',4'-tetrahydro-2H,2'H-[4,8']bichromenyl-7-yloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol
    —— 2-{2-[2-hydroxy-2-(4-methanesulfonyl-phenyl)-ethylimino]-4,5,6,7-tetrahydro-benzothiazol-3-yl}-1-(4-methanesulfonyl-phenyl)-ethanol 13581-54-9 C25H30N2O6S3
    2-{2-[2-hydroxy-2-(4-methanesulfonyl-phenyl)-ethylimino]-4,5,6,7-tetrahydro-benzothiazol-3-yl}-1-(4-methanesulfonyl-phenyl)-ethanol
    —— 2-Brom-1,1,3,3-tetra(4-biphenylyl)-1-propen 124419-97-2 C51H37Br
    2-Brom-1,1,3,3-tetra(4-biphenylyl)-1-propen
    —— 2,2-diethoxy-5-phenyl-2,3-dihydro-furan 14308-31-7 C14H18O3
    2,2-diethoxy-5-phenyl-2,3-dihydro-furan
    —— 2,4-dihydro-2,5-dimethyl-4-<<2-<(3-methyl2-butenyl)oxy>phenyl>methylene>3H-pyrazol-3-one 112296-91-0 C17H20N2O2
    2,4-dihydro-2,5-dimethyl-4-<<2-<(3-methyl2-butenyl)oxy>phenyl>methylene>3H-pyrazol-3-one
    —— (2R,3S)-2-azido-3-hydroxy-1-(4-phenyl-2-thioxo-thiazolidin-3-yl)-oct-4-en-1-one 1041863-26-6 C17H20N4O2S2
    (2R,3S)-2-azido-3-hydroxy-1-(4-phenyl-2-thioxo-thiazolidin-3-yl)-oct-4-en-1-one
    —— 2,2-bis-(4-formylphenyl)-5,5-dimethylpyrrolidin-1-yloxyl radical 635681-26-4 C20H20NO3
    2,2-bis-(4-formylphenyl)-5,5-dimethylpyrrolidin-1-yloxyl radical
    —— (2-acetyl)phenol 2-(1-benzotriazolyl)acetate 302897-96-7 C16H13N3O3
    (2-acetyl)phenol 2-(1-benzotriazolyl)acetate
    —— (+-)-2-ethyl-5-oxo-oct-3t-enoic acid ethyl ester 105788-02-1 C12H20O3
    (+-)-2-ethyl-5-oxo-oct-3t-enoic acid ethyl ester
    —— 2-Amino-3-<4-methoxy-phenyl>-acetophenon 69751-84-4 C15H15NO2
    2-Amino-3-<4-methoxy-phenyl>-acetophenon
    —— (2Z)-2-cyano-N-(4-methoxyphenyl)-3-(methylthio)-3-(2',3',4',6'-tetra-O-acetyl-β-D-galactopyranosylthio)acrylamide 1158961-97-7 C26H30N2O11S2
    (2Z)-2-cyano-N-(4-methoxyphenyl)-3-(methylthio)-3-(2',3',4',6'-tetra-O-acetyl-β-D-galactopyranosylthio)acrylamide
    —— 2',5'-bis(azidomethyl)-p-terphenyl 1002556-68-4 C20H16N6
    2',5'-bis(azidomethyl)-p-terphenyl
    —— (2Z)-2-cyano-N-(4-methoxyphenyl)-3-[(2-oxo-2-phenylethyl)thio]-3-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranosylthio)acrylamide 1158961-85-3 C33H34N2O12S2
    (2Z)-2-cyano-N-(4-methoxyphenyl)-3-[(2-oxo-2-phenylethyl)thio]-3-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranosylthio)acrylamide
    —— 2'-deoxy-2'-methylidene-5'-O-trityl-5-methyluridine 142573-74-8 C30H28N2O5
    2'-deoxy-2'-methylidene-5'-O-trityl-5-methyluridine
    —— 2-((E)-(R)-5-Methylsulfanyl-hex-3-enyloxy)-tetrahydro-pyran 137627-13-5 C12H22O2S
    2-((E)-(R)-5-Methylsulfanyl-hex-3-enyloxy)-tetrahydro-pyran
    —— 2-((2S,3R)-2-Chloro-4-oxo-3-phenylacetylamino-azetidin-1-yl)-3-methyl-but-2-enoic acid methyl ester 56614-31-4 C17H19ClN2O4
    2-((2S,3R)-2-Chloro-4-oxo-3-phenylacetylamino-azetidin-1-yl)-3-methyl-but-2-enoic acid methyl ester
    —— (2S,4S)-N-(4-decylphenyl)-4-hydroxypiperidine-2-carboxamide 1218817-06-1 C22H36N2O2
    (2S,4S)-N-(4-decylphenyl)-4-hydroxypiperidine-2-carboxamide
    —— 2-Pyridinecarboxaldehyde, 5-(difluoromethoxy)-4-fluoro- 1804418-85-6 C7H4F3NO2
    2-Pyridinecarboxaldehyde, 5-(difluoromethoxy)-4-fluoro-
    —— 2-[4-acetyl-2-(benzenesulfonylimino)pyridin-1-yl]-N-(ethylcarbamoyl)acetamide 865605-03-4 C18H20N4O5S
    2-[4-acetyl-2-(benzenesulfonylimino)pyridin-1-yl]-N-(ethylcarbamoyl)acetamide
    —— 2,7-Dichloro-1,3,4,5,6,8-hexafluoronaphthalene 132656-88-3 C10Cl2F6
    2,7-Dichloro-1,3,4,5,6,8-hexafluoronaphthalene
    —— 2-(Ethoxycarbonylamino)-cyclooctanon 22741-47-5 C11H19NO3
    2-(Ethoxycarbonylamino)-cyclooctanon
    —— 2-(3-methyl-2,5-dihydro-1H-pyrrol-1-ylsulfonyl)aniline 1421639-29-3 C11H14N2O2S
    2-(3-methyl-2,5-dihydro-1H-pyrrol-1-ylsulfonyl)aniline
    —— 2-(2,3,4,5-tetrafluoro-6-(pyridin-2-yl)phenyl)benzothiazole 1422200-55-2 C18H8F4N2S
    2-(2,3,4,5-tetrafluoro-6-(pyridin-2-yl)phenyl)benzothiazole
    —— 2-n-Butoxy-4,5-diphenyl-1,3,2-dioxaborol 55089-01-5 C18H19BO3
    2-n-Butoxy-4,5-diphenyl-1,3,2-dioxaborol
    —— 2-Piperidinomethylchinolin-1-oxid 83798-31-6 C15H18N2O
    2-Piperidinomethylchinolin-1-oxid
    —— 2-chloro-3-(2-chloro-6-methylphenyl)quinazoline-4(3H)-one 1627497-62-4 C15H10Cl2N2O
    2-chloro-3-(2-chloro-6-methylphenyl)quinazoline-4(3H)-one
    —— (2R,3R)-2-((tert-butyloxycarbonyl)amino)-3-((S-3-nitro-2-pyridinesulfenyl)thio)-3-phenylpropionic acid 114466-85-2 C19H21N3O6S2
    (2R,3R)-2-((tert-butyloxycarbonyl)amino)-3-((S-3-nitro-2-pyridinesulfenyl)thio)-3-phenylpropionic acid
    —— 2-methyl-4-(4-methylphenylthio)-1-phenylpyridazine-3,6-dione 139547-27-6 C18H16N2O2S
    2-methyl-4-(4-methylphenylthio)-1-phenylpyridazine-3,6-dione
    —— 2,5-diethoxy-3a,6a-diphenyl-3a,6a-dihydro-oxazolo[4,5-d]oxazole 99004-63-4 C20H20N2O4
    2,5-diethoxy-3a,6a-diphenyl-3a,6a-dihydro-oxazolo[4,5-d]oxazole
    —— 2-Allyl-2-(5-chloro-1-phenyl-pentyl)-malononitrile 112654-24-7 C17H19ClN2
    2-Allyl-2-(5-chloro-1-phenyl-pentyl)-malononitrile
    —— 2-Acetamino-5-(2-bromo-4-methyl-phenylmercapto)-thiazole 91570-77-3 C12H11BrN2OS2
    2-Acetamino-5-(2-bromo-4-methyl-phenylmercapto)-thiazole
    —— (2-amino-5-methylphenyl)(1-{cis-4-[(1-methylethyl)oxy]-cyclohexyl}-4-piperidinyl)amine 950772-06-2 C21H35N3O
    (2-amino-5-methylphenyl)(1-{cis-4-[(1-methylethyl)oxy]-cyclohexyl}-4-piperidinyl)amine
    —— 2-cyclohexyl-4-methylphenyl trifluoromethanesulfonate 1160063-24-0 C14H17F3O3S
    2-cyclohexyl-4-methylphenyl trifluoromethanesulfonate
    —— (2R,4S)-4-hydroxy-2-methylcyclohexanone 128443-08-3 C7H12O2
    (2R,4S)-4-hydroxy-2-methylcyclohexanone