| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 2,4,5-三氟苯甲酸乙酯 | ethyl 2,4,5-trifluorobenzoate | 351354-41-1 | C9H7F3O2 |
| 2,4,5-三氟溴苯 | 1-bromo-2,4,5-trifluorobenzene | 327-52-6 | C6H2BrF3 |
| 2,4,5-三氟扁桃酸 | 2,4,5-trifluoromandelic acid | 375369-29-2 | C8H5F3O3 |
| 2,4,5-三氟乙酰苯胺 | 2,4,5-trifluoroacetanilide | 366-50-7 | C8H6F3NO |
| 2,4,5-三氟-1,3-苯二胺 | 2,4,5-trifluoro-1,3-phenylenediamine | 321182-37-0 | C6H5F3N2 |
| 2,4,5,7-四硝基-9(10H)-吖啶酮 | 2,4,5,7-tetranitro-9-acridone | 33963-94-9 | C13H5N5O9 |
| 2,4,5,7-四溴-3,6-二羟基-3-氧代-3H-螺[异苯并呋喃-1,9-氧杂蒽]-6-羧酸 | 2',4',5',7'-Tetrabromo-3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid | 3561-24-8 | C21H8Br4O7 |
| 2,4,5,6-四氯间二甲苯-alpha,alpha'-二醇 | 2,4,5,6-tetrachloro-m-xylene-α | 39568-89-3 | C8H6Cl4O2 |
| 2,4,5,6-四氨基嘧啶盐酸盐 | 2,4,5,6-tetraaminopyrimidine dihydrochloride | 39944-62-2 | C4H8N6*2ClH |
| 2,4,4-三甲基戊酸 | 2,4,4-trimethylpentanoic acid | 3302-09-8 | C8H16O2 |
| 2,4,4-三甲基己烷-1,6-二胺 | 2,4,4-trimethylhexamethylenediamine | 3236-54-2 | C9H22N2 |
| 2,4,4-三甲基己二酸 | 2,4,4-trimethyl-adipic acid | 3937-59-5 | C9H16O4 |
| 2,4,4-三甲基-1-硝基-戊烷-2-醇 | 1-Nitro-2,4,4-trimethyl-2-pentanol | 35223-67-7 | C8H17NO3 |
| 2,4,4,7-四甲基辛烷 | 2,4,4,7-tetramethyl-octane | 35866-96-7 | C12H26 |
| 2,4,4,6-四溴-3-甲基环己-2,5-二烯-1-酮 | 2,4,4,6-tetrabromo-3-methyl-cyclohexa-2,5-dienone | 34946-83-3 | C7H4Br4O |
| 2,4,4,6-四氯-庚烷-1,7-二醇 | 2,4,4,6-Tetrachlorheptan-1,7-diol | 34909-89-2 | C7H12Cl4O2 |
| 2,4,4,6,6-五甲基庚-2-烯 | 2,4,4,6,6-pentamethyl-hept-2-ene | 39761-68-7 | C12H24 |
| 2,4,4,4-四氯丁烷-1-醇 | 2,4,4,4-tetrachlorobutanol | 3290-70-8 | C4H6Cl4O |
| 2,4,4',6-四氯联苯 | PCB 75 | 32598-12-2 | C12H6Cl4 |
| 2,4,4',5-四氯联苯 | 2,4,4',5-tetrachlorobiphenyl | 32690-93-0 | C12H6Cl4 |
| 2,4(1H,3H)-嘧啶二酮-5,6-二氨基-1,3-二丙烷盐酸盐 | 5,6-diamino-1,3-dipropyl-1H-pyrimidine-2,4-dione hydrochloride | 324002-49-5 | C10H18N4O2*ClH |
| 2,4'-二碘联苯 | 2,4'-diiodobiphenyl | 36262-74-5 | C12H8I2 |
| 2,4'-二甲氧基-2-羟基查尔酮 | 2,4'-Dimethoxy-2-hydroxychalcone | 32272-18-7 | C17H16O4 |
| 2,4'-二氯联苯 | 2,4'-dichlorobiphenyl | 34883-43-7 | C12H8Cl2 |
| 2,4'-二氟二苯甲酮 | 2,4'-difluorobenzophenone | 342-25-6 | C13H8F2O |
| 2,4',6-三氯联苯 | PCB 32 | 38444-77-8 | C12H7Cl3 |
| 2,3-萘酞菁铜 | copper naphthalocyanine | 33273-09-5 | C48H24CuN8 |
| 2,3-环氧乙烷二羧酸 | epoxyfumaric acid | 3272-11-5 | C4H4O5 |
| 2,3-环氧丙基三甲基氯化铵 | glycidyltrimethylammonium chloride | 3033-77-0 | C6H14NO*Cl |
| 2,3-戊二烯二酸 | Penta-2,3-dienedioic Acid | 32804-68-5 | C5H4O4 |
| 2,3-己二酮 | 2,3-hexanedione | 3848-24-6 | C6H10O2 |
| 2,3-喹啉二甲酸二乙酯 | diethyl quinoline-2,3-dicarboxylate | 32413-08-4 | C15H15NO4 |
| 2,3-双(苯并三唑-1-基)-1,4-萘醌 | 2,3-bis(benzotriazol-1-yl)-1,4-naphthoquinone | 38957-35-6 | C22H12N6O2 |
| 2,3-双(碘甲基)-6-(三氟甲基)喹喔啉 | 2,3-bis(iodomethyl)-6-(trifluoromethyl)quinoxaline | 32602-09-8 | C11H7F3I2N2 |
| 2,3-双(溴甲基)喹喔啉1-氧化物 | 2,3-Bis-brommethyl-chinoxalin-1-oxid | 33106-95-5 | C10H8Br2N2O |
| 2,3-双(溴甲基)喹喔啉 | 2,3-bis(bromomethyl)quinoxaline | 3138-86-1 | C10H8Br2N2 |
| 2,3-双(溴甲基)-1,4-二甲基苯 | 1,2-bis(bromomethyl)-3,6-dimethylbenzene | 38108-82-6 | C10H12Br2 |
| 2,3-双(氯甲基)喹喔啉1,4-二氧化物 | 2,3-Bis-chloromethyl-quinoxaline 1,4-dioxide | 33299-08-0 | C10H8Cl2N2O2 |
| 2,3-双(二溴甲基)喹喔啉 | 2,3-Bis-dibrommethyl-chinoxalin | 32602-06-5 | C10H6Br4N2 |
| 2,3-双(三氟甲基)苯胺 | 2,3 ditrifluoromethylaniline | 3822-20-6 | C8H5F6N |
| 2,3-双(4-甲苯基)-5-(4-氰苯基)氯化四氮唑 | 2,3-Bis(4-methylphenyl)-5-(4-cyanophenyl)tetrazolium Chloride | 376591-03-6 | C22H18ClN5 |
| 2,3-双(4-甲氧基苯基)-6-甲基喹喔啉 | 2,3-bis-(4-methoxy-phenyl)-6-methyl-quinoxaline | 36305-63-2 | C23H20N2O2 |
| 2,3-双(4-甲氧基苯基)-2,3-二甲基丁烷 | 4,4'-dimethoxybicumene | 32445-98-0 | C20H26O2 |
| 2,3-双(4-甲基苯基)喹喔啉 | 2,3-bis(4-methylphenyl)quinoxaline | 3719-84-4 | C22H18N2 |
| 2,3-双(4-甲基苯基)-2-环丙烯-1-酮 | Di-(p-tolyl)cyclopropenon | 38377-57-0 | C17H14O |
| 2,3-双(4-氯苯基)丙腈 | 2,3-bis(4-chlorophenyl)propanenitrile | 36770-81-7 | C15H11Cl2N |
| 2,3-双(4-氟苯基)喹喔啉-6-羧酸 | 2,3-bis(4-fluorophenyl)quinoxaline-6-carboxylic acid | 355397-64-7 | C21H12F2N2O2 |
| 2,3-双(1-甲基乙基)-丁二酸-1,4-二乙酯 | diethyl 2,3-diisopropylsuccinate | 33367-55-4 | C14H26O4 |
| 2,3-亚甲基二氧基苯硼酸 | 2,3-(methylenedioxy)benzeneboronic acid | 361456-68-0 | C7H7BO4 |
| 2,3-二酮-L-古洛糖酸 | 2.3-Diketo-gulonsaeure | 3445-22-5 | C6H8O7 |