| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 2,2',6-三氯联苯 | 2,2',6-trichlorobiphenyl | 38444-73-4 | C12H7Cl3 |
| 2,2',5,5'-四氯联苯 | 2,2',5,5'-Tetrachlorobiphenyl | 35693-99-3 | C12H6Cl4 |
| 2,2',4-三甲氧基苯甲酮 | 2,2',4-trimethoxybenzophenone | 33077-87-1 | C16H16O4 |
| 2,2',4,5,5'-五甲基二苯基甲烷 | 2,2',4,5,5'-pentamethyldiphenylmethane | 39502-80-2 | C18H22 |
| 2,2',4,4'-四甲氧基二苯甲酮 | 2,2',4,4'-tetramethoxybenzophenone | 3555-85-9 | C17H18O5 |
| 2,2',4,4',6,6'-六硝基二苯基甲烷 | 2,2',4,4',6,6'-Hexanitrodiphenylmethan | 32255-27-9 | C13H6N6O12 |
| 2,2',4,4',6,6'-六氯联苯 | 2,2',4,4',6,6'-Hexachlorobiphenyl | 33979-03-2 | C12H4Cl6 |
| 2,2',3-三氯联苯 | 2,2',3-trichlorobiphenyl | 38444-78-9 | C12H7Cl3 |
| 2,2',3,4,4',5-六氯联苯 | 2,3,3',4,4',5-hexachlorobiphenyl | 35694-06-5 | C12H4Cl6 |
| 2,2',3,4,4',5,5'-七氯联苯 | 2,2',3,4,4',5,5'-Heptachlorobiphenyl | 35065-29-3 | C12H3Cl7 |
| 2,2',3,4'-四氯联苯 | 2,3,2',4'-tetrachlorobiphenyl | 36559-22-5 | C12H6Cl4 |
| 2,2',3,3'-四羟基-1,1'-联萘 | rac-2,2',3,3'-tetrahydroxy-1,1'-binaphthyl | 39215-21-9 | C20H14O4 |
| 2,2',3,3'-四氯联苯 | 2,2',3,3'-tetrachlorobiphenyl | 38444-93-8 | C12H6Cl4 |
| 2,2',3,3'-四氢-5,5'-联噻吩并[3,4-b][1,4]二恶英-7-甲醛 | 2-formyl-(3,4,3’,4’-diethylenedioxy)-5,2’-bithiophene | 336607-95-5 | C13H10O5S2 |
| 2,2',3,3'-四氢-3,3,3',3'-四甲基-1,1'-螺双[1H-茚]-6,6'-二羧酸 | 3,3,3',3'-tetramethyl-2,3,2',3'-tetrahydro-[1,1']spirobiindene-6,6'-dicarboxylic acid | 32507-17-8 | C23H24O4 |
| 2,2',3,3',6,6'-六氯联苯 | 2,2',3,3',6,6'-hexachlorobiphenyl | 38411-22-2 | C12H4Cl6 |
| 2,2',3,3',5,5'-六氯联苯 | 2,2',3,3',5,5'-hexachlorobiphenyl | 35694-04-3 | C12H4Cl6 |
| 2,2',3,3',5,5',6,6'-八氟-4,4'-二硝基-1,1'-联苯 | 4,4'-dinitrooctafluorobiphenyl | 3905-96-2 | C12F8N2O4 |
| 2,2',3,3',4,6'-六氯联苯 | PCB 132 | 38380-05-1 | C12H4Cl6 |
| 2,2',3,3',4,4'-2,5-七溴联苯醚 | 2,2',3,3',4,4',5-Heptabromodiphenyl ether | 327185-13-7 | C12H3Br7O |
| 2,2',3,3',4,4',6,6'-八氯联苯 | 2,2',3,3',4,4',6,6'-octachlorobiphenyl | 33091-17-7 | C12H2Cl8 |
| 2,2',3,3',4,4',5,5'-八氯联苯 | PCB 194 | 35694-08-7 | C12H2Cl8 |
| 2,2',2'-次氮基三[N-丁基-乙酰胺] | Acetamide, 2,2',2''-nitrilotris[N-butyl- | 39557-65-8 | C18H36N4O3 |
| 2,2',2''-三氟三苯甲酸三甲酯 | trimethyl 2,2',2''-nitrilotribenzoate | 34069-90-4 | C24H21NO6 |
| 2,2',2''-[次甲基三(氧基)]三[N,N-二甲基-乙胺] | 2,2',2''-[methylidynetris(oxy)]tris[ethyl(dimethyl)amine] | 38565-71-8 | C13H31N3O3 |
| 2,2',2'',2'''-[甲烷四基四(氧基)]四丙烷 | Tetra-isopropylorthocarbonat | 36597-49-6 | C13H28O4 |
| 2,2',2'',2'''-[(6-氯-1,3,5-三嗪-2,4-二基)二次氮基]四乙醇 | 2,4-bis(N,N-dihydroxyethylamino)-6-chloro-1,3,5-s-triazine | 31482-07-2 | C11H20ClN5O4 |
| 2,11-二氯二苯并[B,F][1,4]氧氮杂 | 2,11-dichlorodibenzo[b,f][1,4]oxazepine | 3455-14-9 | C13H7Cl2NO |
| 2,11,20,29-四叔丁基-2,3-萘酞菁锌 | zinc 2,11,20,29-tetra-tert-butyl-2,3-naphthalocyanine | 39049-43-9 | C64H56N8Zn |
| 2,10-十二碳二炔 | dodeca-2,10-diyne | 31699-38-4 | C12H18 |
| 2,1-苯并异噻唑-3-羧酸 | 2,1-Benzisothiazol-3-carbonsaeure | 34250-66-3 | C8H5NO2S |
| 2,1,3-苯并噻唑-4-基异氰酸酯 | 4-Isocyanato-2,1,3-benzothiadiazole | 342411-14-7 | C7H3N3OS |
| 2,1,3-苯并噻二唑-5-磺酰氯 | 2,1,3-benzothiadiazole-5-sulfonyl chloride | 337508-60-8 | C6H3ClN2O2S2 |
| 2,1,3-苯并噻二唑-5-异硫氰酸酯 | 5-isothiocyanato-benzo[c][1,2,5]thiadiazole | 337508-62-0 | C7H3N3S2 |
| 2,1,3-苯并噻二唑-5--羰酰氯 | benzo[c][1,2,5]thiadiazole-5-carbonyl chloride | 321309-31-3 | C7H3ClN2OS |
| 2,1,3-苯并噁二唑-5-硫代甲酰胺 | 2,1,3-Benzoxadiazole-5-carbothioamide | 306935-24-0 | C7H5N3OS |
| 2,1,3-苯并二唑-5-甲醛 | 5-formylbenzofurazan | 32863-33-5 | C7H4N2O2 |
| 2,-(N-甲基卞胺基)-3-羟基苯乙酮 | 2-(N-benzyl-N-methylamino)acetophenone | 33350-26-4 | C16H17NO |
| 2,(4-甲酰-3-甲基噻吩-2-基)乙基醋酸盐 | 5-(2-hydroxyethyl)-4-methylthiophene-3-carbaldehyde | 334687-35-3 | C8H10O2S |
| 2, 4-二甲氧基-6-甲基苯甲腈 | 2,4-dimethoxy-6-methylbenzonitrile | 319921-60-3 | C10H11NO2 |
| 2(S)-氨基-3-(3,4-二羟基苯基)丙酸乙酯 | L-DOPA ethyl ester | 37178-37-3 | C11H15NO4 |
| 2(S)-[4(S)-(2,2-二氟乙烯基)-2-羰基吡咯烷-1-基]丁酰胺 | seletracetam | 357336-74-4 | C10H14F2N2O2 |
| 2(5H)-噻吩酮 | 2,5-dihydro-2H-2-oxothiophene | 3354-32-3 | C4H4OS |
| 2(3H)-呋喃酮,3-氨基二氢-4,4-二甲基-,(3R)- | 3(R)-amino-4,4-dimethyl-2-oxo-tetrahydrofuran | 368436-80-0 | C6H11NO2 |
| 2(1H)-嘧啶酮,四氢-1-(苯基甲基)— | 1-benzyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone | 34790-80-2 | C11H14N2O |
| 2(1H)-喹啉酮,8-甲基-7-(1-吡咯烷基)- | methyl n-tetradecyl sulfoxide | 3079-31-0 | C15H32OS |
| 2(1H)-吡啶酮,5-(溴甲基)- | 5-Bromomethyl-2-pyridone | 366448-37-5 | C6H6BrNO |
| 2(1H)-吡啶酮,4-乙烯基-(9CI) | 4-vinylpyridin-2(1H)-one | 395681-48-8 | C7H7NO |
| 2(1H)-吡啶亚胺,5-氟-1-甲基- | Octahydro-4-(oxiranylmethoxy)-2,5-methano-2H-indeno(1,2-b)oxirene | 3030-59-9 | C13H18O3 |
| 2',5'-二脱氧尿苷 | 2',5'-dideoxyuridine | 35959-50-3 | C9H12N2O4 |