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中文名称 英文名称 CAS号 化学式
2,3,3,3-四氟丙酸 2H-tetrafluoropropionic acid 359-49-9 C3H2F4O2
2,3,3,3-四氟-2-(三氟甲基)丙酸 heptafluoro-isobutyric acid 335-10-4 C4HF7O2
2,3,3'-三氯联苯 2,3,3'-trichlorobiphenyl 38444-84-7 C12H7Cl3
2,3,3',5,5'-五氯联苯 2,3,3',5,5'-pentachlorobiphenyl 39635-32-0 C12H5Cl5
2,3,3',4,5,5'-六氯联苯2 2,3,3',4,4',5-hexachlorobiphenyl 39635-35-3 C12H4Cl6
2,3,3',4,4'-五溴二苯醚 2,3,3',4,4'-Pentabromodiphenyl ether 373594-78-6 C12H5Br5O
2,3,3',4,4',5,5'-七氯联苯 2,3,3',4,4',5,5'-heptachlorobiphenyl 39635-31-9 C12H3Cl7
2,3,3',4'-联苯四甲酸二酐 2,3,3',4'-biphenyltetracarboxylic dianhydride 36978-41-3 C16H6O6
2,3,3',4',6-五氯联苯 2,3,3',4',6-Pentachlorobiphenyl 38380-03-9 C12H5Cl5
2,3,3',4',5,5'-六氯联苯 2,3,3',4',5,5'-hexachlorobiphenyl 39635-34-2 C12H4Cl6
2,3,16,17-四溴-6,7,9,10,12,13,20,21,23,24,26,27-十二烷基二苯并[B,N][1,4,7,10,13,,16,19,22]八氧杂环四氢己酸 4,4',5,5'-tetrabromodibenzo[24]crown-8 ether 302929-56-2 C24H28Br4O8
2,3'-联吡啶氮氧化物 2-(3'-pyridinyl)pyridine N'-oxide 39182-28-0 C10H8N2O
2,3'-联吡啶二氮氧化物 2,3'-bipyridine 1,1'-dioxide 30651-23-1 C10H8N2O2
2,3'-二硝基二苯砜 1-nitro-2-((3-nitrophenyl)sulfonyl)benzene 34418-84-3 C12H8N2O6S
2,3',6-三氯联苯 2,3',6-Trichlorobiphenyl 38444-76-7 C12H7Cl3
2,3',5-三氯联苯 2,5,3'-trichlorobiphenyl 38444-81-4 C12H7Cl3
2,3',4,4'-四氯联苯 2,3',4,4'-terachlorobiphenyl 32598-10-0 C12H6Cl4
2,3',4',5-四氟联苯-4-酚 3-fluoro-4-(3,4,5-trifluorophenyl)phenol 335125-98-9 C12H6F4O
2,2′:6′,2″-三联吡啶-4,4′,4″-三羧酸三甲酯 trimethyl 2,2':6',2''-terpyridine-4,4',4''-tricarboxylate 330680-46-1 C21H17N3O6
2,2′-联苯二甲醇 2,2'-bis(hydroxymethyl)biphenyl 3594-90-9 C14H14O2
2,2′-联吡啶-3,3′-二醇 [2,2'-bipyridine]-3,3'-diol 36145-03-6 C10H8N2O2
2,2′-滴滴伊 1,1-bis(chlorophenyl)-2,2-dichloroethylene 3328-98-1 C14H8Cl4
2,2′-双(溴甲基)-1,1′-联苯 2,2'-Bis(bromomethyl)-1,1'-biphenyl 38274-14-5 C14H12Br2
2,2′-亚乙基双(4,6-二叔丁基酚) 2,2-ethylidenebis(4,6-tert-butylphenol) 35958-30-6 C30H46O2
2,2′-二吡啶基 N-氧化物 2,2'-bipyridyl N-oxide 33421-43-1 C10H8N2O
2,2′,4,4′,5,5′-六氯联苯 2,2',4,4',5,5'-Hexachlorobiphenyl 35065-27-1 C12H4Cl6
2,2’-脱水-L-尿苷 2,2'-anhydro-L-uridine 31501-46-9 C9H10N2O5
2,2’-联苯二硼酸 2,2'-biphenyldiboronic acid 312968-33-5 C12H12B2O4
2,2’-联吡啶-D8 2,2'-bipyridine-d8 32190-42-4 C10H8N2
2,2’-氧基二(N,N-二辛基乙酰胺) TODGA 342794-43-8 C36H72N2O3
2,2’-氧代双(N,N-二乙基乙胺);双(二乙氨基乙基)醚 1,5-bis-(N,N-diethylamino)diethylether 3030-43-1 C12H28N2O
2,2’-双(三氟甲基)-4,4’-二氨基苯基醚 bis(4-amino-2-trifluoromethylphenyl) ether 344-48-9 C14H10F6N2O
2,2’-亚氨基二乙醇与甲基环氧乙烷的聚合物 2-(2-Hydroxyethylamino)ethanol;2-methyloxirane 35176-06-8 C7H17NO3
2,2’-二氯二苯二硫醚 bis(2-chlorobenzene)disulfide 31121-19-4 C12H8Cl2S2
2,2’-[[4-[(2-氯代-4-硝基苯基)偶氮]苯基]亚氨基]双-乙醇 Disperse Red 19-Cl 3025-41-0 C16H17ClN4O4
2,2’-[[2-乙基-2-[(环氧乙基甲氧基)甲基]-1,3-联丙基]双(氧亚甲基)]双环氧乙烷 1,1,1-trimethylolpropane triglycidyl ether 3454-29-3 C15H26O6
2,2’-[1,4-苯基双(甲基氨基-4,1-苯氧基)]双[2-甲基丙酸] 2,2'-[1,4-Phenylenebis(methyleneimino-4,1-phenyleneoxy)]bis[2-methylpropanoic acid] 385437-91-2 C28H32N2O6
2,2’,5,5’-四甲基联苯基 2,2',5,5'-tetramethylbiphenyl 3075-84-1 C16H18
2,2’,4,4’,6-戊氯联苯 2,2',4,4',6-pentachlorobiphenyl 39485-83-1 C12H5Cl5
2,2’,4,4’,5-五氯联苯 2,2',4,4',5-Pentachlorobiphenyl 38380-01-7 C12H5Cl5
2,2’,3,5’,6-戊氯联苯 2,3,6,2',5'-pentachlorobiphenyl 38379-99-6 C12H5Cl5
2,2’,3,4,5’-戊氯联苯 2,3,4,2',5'-pentachlorobiphenyl 38380-02-8 C12H5Cl5
2,2’,3,3’,4,5,6’-七氯联苯 PCB 174 38411-25-5 C12H3Cl7
2,2-金刚烷烯 Biadamantylidene 30541-56-1 C20H28
2,2-联噻吩-5-乙醛 2,2'-bithiophene-5-carboxaldehyde 3779-27-9 C9H6OS2
2,2-联噻吩-5,5-二羧酸 2,2'-bithiophene-5,5'-dicarboxylic acid 3515-34-2 C10H6O4S2
2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂] 2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate) 38051-10-4 C13H24Cl6O8P2
2,2-双二羟甲基苯胺-d<sub>19</sub> Bis-tris-d19 352534-93-1 C8H19NO5
2,2-双(溴甲基)1,3-丙二醇与(氯甲基)环氧乙烷的聚合物 2,2-Bis(bromomethyl)-1,3-propanediol diglycidyl ether 31452-80-9 C11H20Br2O5
2,2-双(溴乙基)-1,3-丙二醇 2,2-Bis(bromoethyl)-1,3-propanediol 34549-30-9 C7H14Br2O2