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    中文名称 英文名称 CAS号 化学式
    2,2''-联吡啶 [1,1'-biphenyl]-2,2'-diyl bis(trifluoromethanesulfonate) 17763-95-0 C14H8F6O6S2
    2,2''-二-(4-苯基氨基苯氧基)二乙基醚 2,2'-bis(p-anilinophenoxy)-diethyl ether 17427-69-9 C28H28N2O3
    2,16-双(哌啶-1-基)雄甾-3,17-二醇 2,16-di(piperidin-1-yl)androstane-3,17-diol 13522-16-2 C29H50N2O2
    2,15-十六烷二酮 hexadecane-2,15-dione 18650-13-0 C16H30O2
    2,14-二苯基-十四烷酸 2,14-diphenyl-tetradecanoic acid 102947-50-2 C26H36O2
    2,11-二羟基曲米帕明 2,11-Dihydroxytrimipramine 158798-76-6 C20H26N2O2
    2,11-二硫烷基十一烷-1-醇 2,11-Dimercapto-undecanol-(1) 100536-94-5 C11H24OS2
    2,11-二甲基-十二碳-1,11-二烯 2.11-Dimethyl-1.11-dodecadien 13287-11-1 C14H26
    2,11-二甲基-5,8,14,15-四氢-1H,10H-5,15:8,14-二亚乙烯基[1,2,4]三唑并[1',2':1,2]哒嗪并[4,5-f][1,2,4]三唑并[1,2-b]酞嗪-1,3,10,12(2H,11H)-四酮 2,11-dimethyl-5,8,14,15-tetrahydro-1H,10H-5,15:8,14-dietheno[1,2,4]triazolo[1',2':1,2]pyridazino[4,5-f][1,2,4]triazolo[1,2-b]phthalazine-1,3,10,12(2H,11H)-tetraone 120702-36-5 C20H16N6O4
    2,11-二氯十二烷-1,12-二酸 2,11-dichloro dodecanoic-1,12-diacid 100525-23-3 C12H20Cl2O4
    2,11-二氧杂三环[4.4.1.01,6]十一碳-4,7,9-三烯 2H-4a,8a-Epoxy-1-benzopyran 126616-61-3 C9H8O2
    2,11-二乙氧基二苯并咪唑并[2,1-b:2',1'-I]苯并[lmn][3,8]菲咯啉-8,17-二酮 2,11-Diethoxybisbenzimidazo(2,1-b:2',1'-i)benzo(lmn)(3,8)phenanthroline-8,17-dione 10114-60-0 C30H20N4O4
    2,11,20,29-四-叔-丁基-2,3-萘酞菁矾 tetra-{2,3-(6-tert-butyl)naphtho}-tetraazaporphinatooxyvanadium 105011-00-5 C64H56N8OV
    2,10-二苯基-癸酸 2,10-diphenyl-decanoic acid 102473-13-2 C22H28O2
    2,10-二羟基曲米帕明 11-[3-(Dimethylamino)-2-methylpropyl]-5,6-dihydrobenzo[b][1]benzazepine-3,6-diol 158798-75-5 C20H26N2O2
    2,10-二硝基菲 2,10-dinitrophenanthrene 159092-71-4 C14H8N2O4
    2,10-二氯苯并[4,5]咪唑并[1,2-a]苯并[4,5]咪唑并[1,2-d]吡嗪-6,13-二酮 2,9-Dichloro-4b,6,10b,12-tetraaza-indeno[1,2-b]fluorene-5,11-dione 113115-63-2 C16H6Cl2N4O2
    2,10-二乙酰基-8-氯-10H-吩噻嗪 2,10-diacetyl-8-chloro-10<i>H</i>-phenothiazine 10554-04-8 C16H12ClNO2S
    2,10-乙桥雄甾-4-烯-3,17-二酮 2,10-Ethanoandrost-4-ene-3,17-dione 116516-01-9 C20H26O2
    2,1-苯并恶唑-7-甲醛 7-formyl-2,1-benzisoxazole 107096-60-6 C8H5NO2
    2,1-苯并恶唑-4-甲醛 4-formyl-2,1-benzisoxazole 107096-56-0 C8H5NO2
    2,1-苯并恶唑-3-基乙腈 2,1-Benzisoxazole-3-acetonitrile 102908-41-8 C9H6N2O
    2,1-苯并异噻唑正离子,1,3-二氢-1-羰基-3-(2-羰基乙基)- 2-(1-oxo-3H-2,1-benzoxazol-1-ium-3-yl)acetaldehyde 139558-14-8 C9H8NO3
    2,1-苯并异噻唑-4-甲醛(9CI) N<sup>10</sup>-propargyl-5,8-dideaza-5,6,7,8-tetrahydrofolic acid 107174-40-3 C24H27N5O6
    2,1-苯并异噻唑-3-乙酸,a-氰基-a-甲基-5-硝基-,乙基酯 Ethyl alpha-cyano-alpha-methyl-5-nitro-2,1-benzisothiazole-3-acetate 109415-89-6 C13H11N3O4S
    2,1-苯并异噻唑-3-乙酸,a-氰基-5-硝基-,乙基酯 alpha-Cyano-5-nitro-2,1-benzisothiazole-3-acetic acid, ethyl ester 109380-46-3 C12H9N3O4S
    2,1-苯并异噻唑,3-氯-4,5,6,7-四氢-(9CI) 2(S)-hydroxypropionic acid ethylamide 194022-24-7 C5H11NO2
    2,1-苯并异噻唑,3-(4-哒嗪基)- 3-(4-pyridazinyl)-<2.1>-benzisoxazole 140181-57-3 C11H7N3O
    2,1,4-苯并吖二硅杂英,3-亚乙基-1,2,3,4-四氢-1,1,4,4-四甲基- 3-ethylidene-1,1,4,4-tetramethyl-2H-2,1,4-benzazadisiline 139605-09-7 C13H21NSi2
    2,1,3-苯并恶二唑-4-甲酰氯 2,1,3-Benzoxadiazole-4-carbonyl chloride 111595-71-2 C7H3ClN2O2
    2,1,3-苯并恶二唑,4,7-双(5-溴-2-噻吩)- 4,7-bis(5-bromothiophen-2-yl)-2,1,3-benzoxadiazole 1007128-65-5 C14H6Br2N2OS2
    2,1,3-苯并噻二唑-5-醇,4-亚硝基- 4-Nitroso-5-hydroxy-2,1,3-benzothiadiazol 1753-78-2 C6H3N3O2S
    2,1,3-苯并噻二唑-5-甲酸 benzo[c][1,2,5]thiadiazole-5-carboxylic acid 16405-98-4 C7H4N2O2S
    2,1,3-苯并噻二唑-4-羰酰氯 benzo[1,2,5]thiadiazole-4-carboxylic acid chloride 148563-33-1 C7H3ClN2OS
    2,1,3-苯并噻二唑-4-异硫氰酸酯 2,1,3-benzothiadiazol-4-yl isothiocyanate 109029-21-2 C7H3N3S2
    2,1,3-苯并噻二唑-4,7-二胺 4,7-diaminobenzo[c][1,2,5]thiadiazole 19951-39-4 C6H6N4S
    2,1,3-苯并噻二唑-4,5-二胺 benzo[1,2,5]thiadiazole-4,5-diamine 1711-66-6 C6H6N4S
    2,1,3-苯并噻二唑,4-乙氧基-5,7-二硝基- 4-Aethoxy-5,7-dinitro-2,1,3-benzothiadiazol 1753-77-1 C8H6N4O5S
    2,1,3-苯并噁二唑-5-碳酰肼 2,1,3-Benzoxadiazole-5-carbohydrazide 175203-93-7 C7H6N4O2
    2,1,3-苯并噁二唑-4-甲醇 4-hydroxymethylbenzofurazan 175609-19-5 C7H6N2O2
    2,1,3-苯并噁二唑-4,6-二醇,5,7-二硝基-,3-氧化 5,7-Dinitro-4,6-benzofurazandiol 3-oxide 137678-12-7 C6H2N4O8
    2,1,3-苯并二唑-4-磺酰氯 benzo[1,2,5]oxadiazole-4-sulfonyl chloride 114322-14-4 C6H3ClN2O3S
    2,1,3-苯噁二唑-5-甲醛 1-氧化物 5-formylbenzofuroxan 19164-42-2 C7H4N2O3
    2,1,3-苯噁二唑-4-磺酰胺 2,1,3-Benzoxadiazole-4-sulfonamide 114322-13-3 C6H5N3O3S
    2,-三氟-(氟甲基)苯甲酸 2,4,5-trifluoro-3-(trifluoromethyl)benzoic acid 118829-14-4 C8H2F6O2
    2,-(2-氨基乙氧基)-1,1-二甲氧基乙烷 2-(2,2-dimethoxyethoxy)ethanamine 1228258-40-9 C6H15NO3
    2, 3-二甲基-4-(2,2,2-三氟乙氧基)吡啶-N-氧化物 2,3-dimethyl-4-(2,2,2-trifluoroethoxy)-pyridine N-oxide 103577-61-3 C9H10F3NO2
    2, 2'-二硫代二苯甲酸 2,2'-dithiobenzoic acid 119-80-2 C14H10O4S2
    2(甲硫基)-1H-苯并咪唑-6-羧酸 2-methylthio-5-carboxybenzimidazole 148720-14-3 C9H8N2O2S
    2(S)-氮杂双环[2.2.2]辛烷-2,3-二羧酸2-叔丁酯 (2S)-3-tert-butoxycarbonyl-3-azabicyclo[2,2,2]octane-2-carboxylic acid 109523-16-2 C13H21NO4