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    中文名称 英文名称 CAS号 化学式
    2-甲基(2S)-3,3-二甲基-4-氧吡咯烷-1,2-二羧酸1-叔丁基酯 3,3-dimethyl-4-oxo-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester 478698-30-5 C13H21NO5
    2-甲基(2R,4S)-4-氟吡咯烷-1,2-二羧酸1-叔丁基酯 1-(tert-butyl) 2-methyl (2R,4S)-4-fluoropyrrolidine-1,2-dicarboxylate 647857-39-4 C11H18FNO4
    2-甲基(2R)-4,4-二氟吡咯烷-1,2-二羧酸1-叔丁基酯 (R)-1-tert-butyl 2-methyl 4,4-difluoropyrrolidine-1,2-dicarboxylate 647857-74-7 C11H17F2NO4
    2-甲基(2-噻吩基甲基)吡嗪 2-Methyl-3-(thiophen-2-ylmethyl)pyrazine 94279-28-4 C10H10N2S
    2-甲基(1,7,7-三甲基双环[2.2.1]庚基)环己烷-1-醇 Bornyl-2-methylcyclohexanol 71965-26-9 C17H30O
    2-甲基(1,7,7-三甲基双环[2.2.1]庚基)环己烷-1-酮 Bornyl-2-methylcyclohexanone 68036-94-2 C17H28O
    2-甲基 2-甲基吡咯烷-1,2-二羧酸-1-叔丁酯 1-tert-butyl 2-methyl 2-methylpyrrolidine-1,2-dicarboxylate 317355-80-9 C12H21NO4
    2-甲基 (2R)-氮杂丁烷-1,2-二羧酸-1-叔丁酯 1-tert-butyl 2-methyl (2R)-azetidine-1,2-dicarboxylate 1260593-39-2 C10H17NO4
    2-甲乙氧基二苯甲酮 ethyl 2-benzoylbenzoate 604-61-5 C16H14O3
    2-甲丙烯酸甲酯与1,1-二氯乙烯的聚合物 1,1-Dichloroethene;methyl 2-methylprop-2-enoate 25120-29-0 C7H10Cl2O2
    2-甲丙基苯酚 2-isobutylphenol 4167-75-3 C10H14O
    2-甲-4-氯苯氧基乙酸甲酯 methyl 4-chloro-2-methylphenoxyacetate 2436-73-9 C10H11ClO3
    2-甲-4-氯胺盐 mcpa dimethylamine salt 2039-46-5 C2H7N*C9H9ClO3
    2-甲-4-氯丙酸D3 Mecoprop-d3 352431-15-3 C10H11ClO3
    2-甲-4-氯丙酸-2-辛酯 Mecoprop-isooctyl 28473-03-2 C18H27ClO3
    2-甲-4-氯丙酸 6-Amino-3-carboxamido-5-cyano-4-(p-methoxyphenyl)-3,4-dihydropyridon 70987-91-6 C14H14N4O3
    2-甲-4-氯丁酸甲酯 methyl 4-chloro-2-methylphenoxybutyrate 57153-18-1 C12H15ClO3
    2-甲-4-氯丁氧乙基酯 MCPA-butotyl 19480-43-4 C15H21ClO4
    2-甲-4-戊烯-2-醇 2-methylpent-4-en-2-ol 624-97-5 C6H12O
    2-甲-3-己炔-2-醇 2-methyl-3-hexyn-2-ol 5075-33-2 C7H12O
    2-甲-3-亞甲基戊烷 2-ethyl-3-methyl-1-butene 7357-93-9 C7H14
    2-甲-2,3-环氧-3-[（3,4-亚甲二氧基）苯基]丙酸甲酯 Pmk methyl glycidate 13605-48-6 C12H12O5
    2-甲-1-硝丙烷 1-nitroisobutane 625-74-1 C4H9NO2
    2-甘油磷酸二钠 (S,E)-2,5-dimethyl-4-((S)-N,3,3-trimethyl-2-((S)-3-methyl-2-(methylamino)-3-phenylbutanamido)butanamido)hex-2-enoic acid 228266-40-8 C27H43N3O4
    2-甘氨酰氨基-辛酸 2-glycylamino-octanoic acid 306748-50-5 C10H20N2O3
    2-甘氨酰-9-去-甘氨酰-2-苯丙氨酰-8-鸟氨酰-加压素 (2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-[[2-[(2-aminoacetyl)amino]acetyl]amino]-3-sulfanylpropanoyl]amino]-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-N-[(2S)-4-amino-1-[[(2R)-1-[(2S)-2-[[(Z,2S)-1,5-diamino-1-oxopent-3-en-2-yl]carbamoyl]pyrrolidin-1-yl]-1-oxo-3-sulfanylpropan-2-yl]amino]-1,4-dioxobutan-2-yl]pentanediamide 113846-97-2 C47H66N14O12S2
    2-琥珀酰亚胺基-1,1,3,3-四甲基脲四氟硼酸酯 2-(2,5-Dioxopyrrolidin-1-yl)-1,1,3,3-tetramethylisouronium tetrafluoroborate 105832-38-0 C9H16BF4N3O3
    2-环辛烯-1-酮,2-苯基- (Z)-2-phenylcyclooct-2-enone 100883-10-1 C14H16O
    2-环辛烯-1-腈 2-cycloctene-1-carbonitrile 105736-06-9 C9H13N
    2-环辛烯-1-羧酸,1-甲基-8-羰基-,乙基酯 ethyl 1-methyl-8-oxocyclooct-2-ene-1-carboxylate 139197-38-9 C12H18O3
    2-环辛烯-1-乙醛 cyclo-oct-2-enylacetaldehyde 106019-14-1 C10H16O
    2-环辛炔-1-酮 Cyclooct-2-inon 16668-75-0 C8H10O
    2-环辛氧基环庚-2,4,6-三烯-1-酮 2-(cyclooctyl)tropone 87563-18-6 C15H20O2
    2-环辛基乙胺 cyclooctylethylamine 4744-94-9 C10H21N
    2-环辛基丙二酸 cyclooctane-1-carboxy-1-acetic acid 3667-53-6 C11H18O4
    2-环辛基-6-环戊基苯酚 2-Cyclooctyl-6-cyclopentylphenol 93841-40-8 C19H28O
    2-环氧乙烷羧酸2-苯基乙酯 Oxiranecarboxylic acid, 2-phenylethyl ester 68892-14-8 C11H12O3
    2-环氧乙烷基甲基环丙烷羧酸酯 (Oxiran-2-yl)methyl cyclopropanecarboxylate 130433-14-6 C7H10O3
    2-环氧乙烷基甲基三氟乙酸盐 (RS)-<<(trifluoromethanesulfonyl)oxy>methyl>oxirane 69161-63-3 C5H5F3O3
    2-环氧乙烷基甲基[(1,3,3-三甲基-5-{[(2-环氧乙烷基甲氧基)羰基]氨基}环己基)甲基]氨基甲酸酯 Oxiranylmethyl ((1,3,3-trimethyl-5-(((oxiranylmethoxy)carbonyl)amino)cyclohexyl)methyl)carbamate 85665-62-9 C18H30N2O6
    2-环氧乙烷基甲基(5Z,8Z,11Z,14Z)-5,8,11,14-二十碳四烯酸酯 (+/-)-glycidyl arachidonate 439146-24-4 C23H36O3
    2-环氧乙烷基(1-吡咯烷基)甲酮 Oxiran-2-yl(pyrrolidin-1-yl)methanone 119163-30-3 C7H11NO2
    2-环戊酮羧酸 2-oxocyclopentane-1-carboxylic acid 50882-16-1 C6H8O3
    2-环戊烯酮 cyclopent-2-enone 930-30-3 C5H6O
    2-环戊烯基酮 cyclopent-2-en-1-yl(phenyl)methanone 64207-12-1 C12H12O
    2-环戊烯基-4-甲氧基-1H-吲哚 2-Cyclopentenyl-4-methoxy-1H-indole 1028386-71-1 C14H15NO
    2-环戊烯基-1-乙酸 (cyclopent-2-eneyl)acetic acid 13668-61-6 C7H10O2
    2-环戊烯-1-醇,5-苯基-,反- (1R,5S)-5-Phenyl-cyclopent-2-enol 106262-45-7 C11H12O
    2-环戊烯-1-醇,4-[[(1,1-二甲基乙基)二甲基甲硅烷基]氧代]-,(1S,4R)- 2-Cyclopenten-1-ol, 4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-, cis- 61305-33-7 C11H22O2Si
    2-环戊烯-1-醇,4-[[(1,1-二甲基乙基)二甲基甲硅烷基]氧代]-,(1S,4R)- (1S,4R)-4-((tert-butyldimethylsilyl)oxy)cyclopent-2-enol 104069-09-2 C11H22O2Si