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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 2,3,6-trideoxy-2-fluoro-3-trifluoroacetamido-α-L-galactose 116940-75-1 C8H11F4NO4
    2,3,6-trideoxy-2-fluoro-3-trifluoroacetamido-α-L-galactose
    —— 2-isopropyl-1-(2-tetrahydropyranyloxy)-4-pentyne 320399-92-6 C13H22O2
    2-isopropyl-1-(2-tetrahydropyranyloxy)-4-pentyne
    —— (2S)-methyl 2-(7-(4-(allyloxy)-4-methylpieridin-1-yl)-2-(2‘-(but-3-en-2-yloxy)-5‘-methyl-[1,1‘-biphenyl]-3-yl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate 1567217-20-2 C40H50N4O5
    (2S)-methyl 2-(7-(4-(allyloxy)-4-methylpieridin-1-yl)-2-(2‘-(but-3-en-2-yloxy)-5‘-methyl-[1,1‘-biphenyl]-3-yl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate
    —— 2-(2-Benzenesulfinyl-3-methyl-but-3-enyl)-1,4-dimethoxy-3-methyl-naphthalene 98713-69-0 C24H26O3S
    2-(2-Benzenesulfinyl-3-methyl-but-3-enyl)-1,4-dimethoxy-3-methyl-naphthalene
    —— (2S,3S)-3-methyl-2-(prop-2-ynoylamino)-N-prop-2-ynylpentanamide 1268671-09-5 C12H16N2O2
    (2S,3S)-3-methyl-2-(prop-2-ynoylamino)-N-prop-2-ynylpentanamide
    —— (2-Amino-oxazol-5-yl)-(3-fluoro-phenyl)-methanone 112934-53-9 C10H7FN2O2
    (2-Amino-oxazol-5-yl)-(3-fluoro-phenyl)-methanone
    —— 2-[(3,5-difluorophenyl)sulfonyl]-5-(1-piperazinyl)-N-propylphenylamine 381668-22-0 C19H23F2N3O2S
    2-[(3,5-difluorophenyl)sulfonyl]-5-(1-piperazinyl)-N-propylphenylamine
    —— 2-cyclohexyl-6-[4-(4-nitrobenzyl)piperazin-1-yl]-2,3-dihydro-1H-isoindol-1-one 217491-52-6 C25H30N4O3
    2-cyclohexyl-6-[4-(4-nitrobenzyl)piperazin-1-yl]-2,3-dihydro-1H-isoindol-1-one
    —— (2Z)-4-{[tert-butyl(dimethyl)silyl]oxy}-2-[4-(methylsulfonyl)phenyl]-3-phenylbut-2-enyl acetate 754242-03-0 C25H34O5SSi
    (2Z)-4-{[tert-butyl(dimethyl)silyl]oxy}-2-[4-(methylsulfonyl)phenyl]-3-phenylbut-2-enyl acetate
    —— 2-ethoxycarbonyloxy-naphthalene-1-sulfonyl chloride 861048-46-6 C13H11ClO5S
    2-ethoxycarbonyloxy-naphthalene-1-sulfonyl chloride
    —— 2,3-bis(2-hexynyl)-9,10-dihydro-1,4,5,6,7,8-hexapropylanthracene 254747-40-5 C44H64
    2,3-bis(2-hexynyl)-9,10-dihydro-1,4,5,6,7,8-hexapropylanthracene
    —— 2-[(2S,3S,6R)-6-methoxy-3-methyl-3,6-dihydro-2H-pyran-2-yl]-6-methyl-5-(triethylsilyloxy)tetradeca-8,10,12-trien-7-ol 924286-83-9 C28H50O4Si
    2-[(2S,3S,6R)-6-methoxy-3-methyl-3,6-dihydro-2H-pyran-2-yl]-6-methyl-5-(triethylsilyloxy)tetradeca-8,10,12-trien-7-ol
    —— (2-thiosuberoyloxydiethyl)-bis(dimethylamine) dihydrochloride 143434-02-0 C16H32N2O2S2*2ClH
    (2-thiosuberoyloxydiethyl)-bis(dimethylamine) dihydrochloride
    —— (2R,2'R,3R,3'R,4R,4'R,5R,5'R,6S,6'S)-((((6,6'-(([2,2'-bipyridine]-4,4'-dicarbonyl)bis(azanediyl))bis(hexanoyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(oxy))bis(5-acetamido-2-(acetoxymethyl)tetrahydro-2H-pyran-6,3,4-triyl) tetraacetate 593252-83-6 C56H78N8O22
    (2R,2'R,3R,3'R,4R,4'R,5R,5'R,6S,6'S)-((((6,6'-(([2,2'-bipyridine]-4,4'-dicarbonyl)bis(azanediyl))bis(hexanoyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(oxy))bis(5-acetamido-2-(acetoxymethyl)tetrahydro-2H-pyran-6,3,4-triyl) tetraacetate
    —— (2S,3R,5R)-2-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hydroxymethyl-3-(4-octyl-phenyl)-pyrrolidine-1-carboxylic acid tert-butyl ester 928653-24-1 C41H59NO4Si
    (2S,3R,5R)-2-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hydroxymethyl-3-(4-octyl-phenyl)-pyrrolidine-1-carboxylic acid tert-butyl ester
    —— [2-[2-chloro-4-(methylsulfonyl) phenoxy]-4-(trifluoromethyl)phenoxy]acetic acid 847148-73-6 C16H12ClF3O6S
    [2-[2-chloro-4-(methylsulfonyl) phenoxy]-4-(trifluoromethyl)phenoxy]acetic acid
    —— [(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-[(Z)-N-hydroxy-C-(2,4,6-trimethoxyphenyl)carbonimidoyl]sulfanyloxan-2-yl]methyl acetate 160280-06-8 C24H31NO13S
    [(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-[(Z)-N-hydroxy-C-(2,4,6-trimethoxyphenyl)carbonimidoyl]sulfanyloxan-2-yl]methyl acetate
    —— 2-Oxo-3-phenyl-5-<4-iod-phenyl>-2,3-dihydro-furan 94028-48-5 C16H11IO2
    2-Oxo-3-phenyl-5-<4-iod-phenyl>-2,3-dihydro-furan
    —— 2,4-Dimethoxy-5-isovaleryl-benzoesaeure-methylester 92655-94-2 C15H20O5
    2,4-Dimethoxy-5-isovaleryl-benzoesaeure-methylester
    —— <2-(1-Nitro-cyclohexyl)-vinyl>-p-tolyl-keton 34102-14-2 C16H19NO3
    <2-(1-Nitro-cyclohexyl)-vinyl>-p-tolyl-keton
    —— 2-Oxo-3-ethyl-4-propyl-pyrrolidin-carbonsaeure-(3)-ethylester 93186-03-9 C12H21NO3
    2-Oxo-3-ethyl-4-propyl-pyrrolidin-carbonsaeure-(3)-ethylester
    —— 2,4-Dibrom-oestradiol-17β-acetat 95946-09-1 C20H24Br2O3
    2,4-Dibrom-oestradiol-17β-acetat
    —— 2-Carboxy-5α-androsten-(2)-ol-(17β) 1096-67-9 C20H30O3
    2-Carboxy-5α-androsten-(2)-ol-(17β)
    —— 2-Hydroxy-3-formyl-5-methyl-5-aethoxycarbonyl-cyclopenten-(2)-on-(1) 91062-15-6 C10H12O5
    2-Hydroxy-3-formyl-5-methyl-5-aethoxycarbonyl-cyclopenten-(2)-on-(1)
    —— 2α-Carboxy-3-oxa-5α-cholestan 96971-78-7 C27H46O3
    2α-Carboxy-3-oxa-5α-cholestan
    —— 2-Methoxy-4-ethoxycarbonyl-4-hydroxy-3-methyl-hex-2-en-saeure-γ-lacton 718-78-5 C11H16O5
    2-Methoxy-4-ethoxycarbonyl-4-hydroxy-3-methyl-hex-2-en-saeure-γ-lacton
    —— 2,4,6-Triamino-5-<α-cyan-γ-phenyl-propen-(2)-ylamino>-pyrimidin 95315-85-8 C14H15N7
    2,4,6-Triamino-5-<α-cyan-γ-phenyl-propen-(2)-ylamino>-pyrimidin
    —— 2-tert-butyl-N-isopropyl-N-methyl-3-(tetrahydropyran-4-ylmethyl)-imidazo[1,2-a]pyridine-7-carboxamide 1011803-22-7 C22H33N3O2
    2-tert-butyl-N-isopropyl-N-methyl-3-(tetrahydropyran-4-ylmethyl)-imidazo[1,2-a]pyridine-7-carboxamide
    —— 2-Dichlormethyl-5-aethylsulfonyl-1,3,4-thiadiazol 27603-42-5 C5H6Cl2N2O2S2
    2-Dichlormethyl-5-aethylsulfonyl-1,3,4-thiadiazol
    —— 2-acetyl-4-methoxyphenyl 3-methoxybenzoate 1371663-72-7 C17H16O5
    2-acetyl-4-methoxyphenyl 3-methoxybenzoate
    —— 2-acetoxy-6-bromo-5-nitroquinoline 115071-55-1 C11H7BrN2O4
    2-acetoxy-6-bromo-5-nitroquinoline
    —— 2-nitrobenzyl 4-oxocyclohexanecarboxylate 945843-05-0 C14H15NO5
    2-nitrobenzyl 4-oxocyclohexanecarboxylate
    —— 2,5-Dimethyl-benzolsulfonsaeure-<4-methyl-2-pyrrolidino-pyrimidinyl-(6)>-ester 19827-61-3 C17H21N3O3S
    2,5-Dimethyl-benzolsulfonsaeure-<4-methyl-2-pyrrolidino-pyrimidinyl-(6)>-ester
    —— 2-(6-Chinolyl)-5-methyl-4-phenyl-imidazol 100210-10-4 C19H15N3
    2-(6-Chinolyl)-5-methyl-4-phenyl-imidazol
    —— 2,5-Bis-<diaethylamino-carbamoyl>-1,4-dithian 92370-28-0 C14H26N2O2S2
    2,5-Bis-<diaethylamino-carbamoyl>-1,4-dithian
    —— 2-cyano-3-(3-nitro-phenyl)-3-oxo-propionic acid ethyl ester 108669-55-2 C12H10N2O5
    2-cyano-3-(3-nitro-phenyl)-3-oxo-propionic acid ethyl ester
    —— 2-Methylthio-4a,5,8,8a-tetrahydro-5,8-methano-1,4-naphthochinon-dimethansulfonimid 96792-84-6 C14H18N2O4S3
    2-Methylthio-4a,5,8,8a-tetrahydro-5,8-methano-1,4-naphthochinon-dimethansulfonimid
    —— 2-Cyclohexylthio-p-chinon-dimethansulfonimid 97299-15-5 C14H20N2O4S3
    2-Cyclohexylthio-p-chinon-dimethansulfonimid
    —— 2-[(3,4-dichlorophenyl)(diethoxyphosphoryl)methoxy]acetic acid 1386395-32-9 C13H17Cl2O6P
    2-[(3,4-dichlorophenyl)(diethoxyphosphoryl)methoxy]acetic acid
    —— 2-benzyl-4-(naphthalen-2-yl)-1-tosyl-4,5-dihydro-1H-imidazole 1071204-71-1 C27H24N2O2S
    2-benzyl-4-(naphthalen-2-yl)-1-tosyl-4,5-dihydro-1H-imidazole
    —— 2,4,6,8-tetrakis-(4-chloro-phenyl)-1,5(2,5)-dipyrrola-3,7(2,5)-dithiophena-cyclooctaphane-1(2),4,6,7(8)-tetraene 71221-19-7 C44H24Cl4N2S2
    2,4,6,8-tetrakis-(4-chloro-phenyl)-1,5(2,5)-dipyrrola-3,7(2,5)-dithiophena-cyclooctaphane-1(2),4,6,7(8)-tetraene
    —— 2,4-Dimethyl-5-ethyl-2-propyl-thiazoline-Δ<sup>3</sup> 2289-66-9 C10H19NS
    2,4-Dimethyl-5-ethyl-2-propyl-thiazoline-Δ<sup>3</sup>
    —— 2-{3-[bis-(2-hydroxy-ethyl)-amino]-propyl}-4,5-diethyl-2,4-dihydro-[1,2,4]triazol-3-one 52883-43-9 C13H26N4O3
    2-{3-[bis-(2-hydroxy-ethyl)-amino]-propyl}-4,5-diethyl-2,4-dihydro-[1,2,4]triazol-3-one
    —— 2,2-Dimethyl-propionic acid (3R,4S,5R,7R,8R)-5-(tert-butyl-dimethyl-silanyloxy)-9-iodo-3,7-dimethoxy-4,8-dimethyl-nonyl ester 181644-26-8 C24H49IO5Si
    2,2-Dimethyl-propionic acid (3R,4S,5R,7R,8R)-5-(tert-butyl-dimethyl-silanyloxy)-9-iodo-3,7-dimethoxy-4,8-dimethyl-nonyl ester
    —— 2,2,2-Trifluoro-1-[3-((2E,6E)-3,7,11-trimethyl-dodeca-2,6,10-trienyl)-2,3-dihydro-indol-1-yl]-ethanone 102720-39-8 C25H32F3NO
    2,2,2-Trifluoro-1-[3-((2E,6E)-3,7,11-trimethyl-dodeca-2,6,10-trienyl)-2,3-dihydro-indol-1-yl]-ethanone
    —— 2,2',6,6'-tetrakis((boraneylbis(3-(trifluoromethyl)phenyl)-l5-phosphaneyl)methyl)-1,1'-biphenyl 1229618-95-4 C72H58B4F24P4
    2,2',6,6'-tetrakis((boraneylbis(3-(trifluoromethyl)phenyl)-l5-phosphaneyl)methyl)-1,1'-biphenyl
    —— (2-hydroxynaphthalen-1-yl)mercury(1+);acetate 100136-14-9 C12H10HgO3
    (2-hydroxynaphthalen-1-yl)mercury(1+);acetate
    —— 2,4-bis(metoxycarbonyl)-(E)-6-nonenolide 114714-89-5 C13H18O6
    2,4-bis(metoxycarbonyl)-(E)-6-nonenolide
    —— 2-butyl-3,4-diphenyl-[1,2,4]oxadiazolidin-5-one 50484-14-5 C18H20N2O2
    2-butyl-3,4-diphenyl-[1,2,4]oxadiazolidin-5-one
    —— 2-amino-2-(3-ethoxy-4-isopropoxyphenyl)acetonitrile hydrochloride 918810-41-0 C13H18N2O2*ClH
    2-amino-2-(3-ethoxy-4-isopropoxyphenyl)acetonitrile hydrochloride