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2-氯-4硝基苯胺:2-chloro-4-nitroaniline
2-氯-4,6=二甲基吡啶:2-chloro-4,6-dimethyl pyrimidine
2-氯-2氰吡啶:2-chloro-2-cyano pyridine
2-甲基戊醇:2-methyl-1-pentanol
2-甲基-5-硝基酚:2-methyl-5-nitrophenol
2-甲基-5-甲氧苯并唑:2-methyl-5-methoxy benzoxazole
2-苄基丙烯酸:2-Benzyl acrylic acid
2-氨基苯甲醛:Benzaldehyde, 2-amino-
2-氨基5-甲基噻唑:2-amino-5-methyl thiazole
2-氨基-5-氟代甲基苯酸:2-Amino-5-fluorobenzoic acid
2-氨基-4,6-二甲氧基嘧啶:2-amino-4,6-dimethoxypyrimidine
20合金:20 alloy
2,6-二异丙基苯酚:2,6-diisopropyl phenol
2,6-二异丙基苯胺:2,6-diisopropyl aniline
2,6二特丁基苯酚:2,6-di-tert-butyl phenol
2,6-二甲基哌嗪:2,6-Dimethyl pyrazine
2,6二甲代苯胺:2,6-Xylidine
2,6-二氨基甲苯:2,6-diamino toluene
2,5-二氯硝基苯:2,5-dichloronitrobenzene
2,5-二甲氧基苯胺:2,5-Dimethoxyaniline
2,4-双甲氧基-苯甲醛:2,4-Dimethoxyb-enzaldehyde
2,4-二硝基-6-溴苯胺:2-Bromo-4,6-dinitroaniline
2,4-二氯氯苄:2,4-Dichloro-1-(chloromethyl)benzene
2,4-二氯甲苯:2,4-dichlorotoluene
2,4-二氯-5-氟苯乙酮:2,4-Dichloro-5-fluoro-acetophenone
2,4-二氨基硫酸苯甲醚:2,4-Diaminoanisole sulfate
2,4二氨基苯氧基-二氯乙酰:2,4-Diaminophenoxy-ethanol 2HCL
2,4,6-三甲氧基苯甲酸:2,4,6-Trimethoxybenzoic acid
2,4,5,6-四氨基硫酸吡啶:2,4,5,6-tetraaminopyrimidine sulfate
2,3-二氢呋喃:2,3-Dihydrogenfuran
2,3-二羟基呋喃:2,3-dihydrofuran
2,3-二氯甲苯:2,3-dichlorotoluene
2,3-二氯苯甲酸:2,3-dichlorobenzoic acid
2,3-二甲基吡啶:2,3-dimethylpyridine
2,3-二氨基甲苯:2,3-Diaminotoluene
2,3-二氨基吡啶:2,3-diaminopyridine
2,3,5-三溴苯甲酸:2,3,5-tribromo benzoic acid
2,3,4-三氟硝基苯:2,3,4-trifluoronitrobenzene
2,3,4,5-四甲基-2-环戊烯酮:2,3,4,5-tetramethyl-2-cyclopentenone
2,3,4,4-四羟基苯酮:2,3,4,4-tetrahydroxybenzophenone
2,3- 吡啶羟酸:2,3-Pyridine carboxylic acid
2,2-二甲基硫代磷酰氯:o,o-diethyl thiophosphoryl chloride
2,2-二甲基环戊烷:2,2-dimethylcyclopentanone
2,2′偶氮二异丁腈:2,2'- azobisisobutyronitrile,AIBN
①氧②羟基(误称,但常用):oxy-
①盐②酯:-ate
1-溴十二烷:1-bromo-n-dodecane
1-溴己烷:1-bromohexane
①特(指CH3…C(CH3)2-型烃基)②叔:tert-
1熔化,熔解 2 熔合(核子):fusion