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中文名称 英文名称 CAS号 化学式
2,3,4,5-四氢-1H-苯并[c]氮杂-7-醇 2,3,4,5-Tetrahydro-1H-benzo[c]azepin-7-ol 754184-91-3 C10H13NO
2,3,4,5-四氢-1H-2-苯并氮杂卓 2,3,4,5-tetrahydro-1H-benzo[c]azepine 7216-22-0 C10H13N
2,3,4,5-四(三氟甲基)吡咯 2,3,4,5-tetrakis(trifluoromethyl)pyrrole 73688-41-2 C8HF12N
2,3,4,5,6-五氯苯酚3-(丙-2-烯基氨基)丙腈 2,3,4,5,6-Pentachlorophenol; 3-(prop-2-enylamino)propanenitrile 7357-29-1 C12H11Cl5N2O
2,3,4,5,6-五氯-4-[二(烯丙氧基)亚膦酰]-2,5-环己二烯-1-酮 2,5-Cyclohexadien-4-one, pentachloro-4-(diallylphosphono)- 73806-36-7 C12H10Cl5O4P
2,3,4,5,6-五氟苯胺 2,3,4,5,6-pentafluoroaniline 771-60-8 C6H2F5N
2,3,4,5,6-五氟苯磺酰胺 2,3,4,5,6-pentafluorobenzenesulfonamide 778-36-9 C6H2F5NO2S
2,3,4,5,6-五氟联苯 2,3,4,5,6-pentafluorobiphenyl 784-14-5 C12H5F5
2,3,4,5,6-五氟甲苯 2,3,4,5,6-pentafluorotoluene 771-56-2 C7H3F5
2,3,4,5,6-五(三氟甲基)苯酚 pentakis(trifluoromethyl)phenol 723294-91-5 C11HF15O
2,3,4,5,6,7-六氢-1H-茚-5-甲酰氯 2,3,4,5,6,7-Hexahydro-1H-indene-5-carbonyl chloride 75412-82-7 C10H13ClO
2,3,4,5,5-五氟-1,3-环戊二烯-1-羰基氟化物 pentafluorocyclopenta-1,3-diene 1-carboxylic acid fluoride 74415-71-7 C6F6O
2,3,4,4a,5,6-六氢-1H-吡嗪并[1,2-a]喹喔啉 2,3,4,4a,5,6-hexahydro-1<i>H</i>-pyrazino[1,2-<i>a</i>]quinoxaline 73187-21-0 C11H15N3
2,3,4,4-四甲基-2-恶唑啉碘化物 2,4,4-trimethyl-2-oxazoline 70489-82-6 C7H14NO*I
2,3,4,4',6-五氯联苯 2,3,4,4',6-Pentachlorobiphenyl 74472-38-1 C12H5Cl5
2,3,4,4',5-五氯联苯 2,3,4,4',5-pentachlorobiphenyl 74472-37-0 C12H5Cl5
2,3,3’,6-四氯联苯 2,3,6,3'-tetrachlorobiphenyl 74472-33-6 C12H6Cl4
2,3,3’,4,4’,5,5’,6-八氯联苯 2,3,3',4,4',5,5',6-octachlorobiphenyl 74472-53-0 C12H2Cl8
2,3,3-三甲基-3H-苯并[g]吲哚 2,3,3-trimethyl-3H-benzo[g]indole 74470-85-2 C15H15N
2,3,3-三甲基-1,4-戊二烯 2,3,3-Trimethyl-1,4-pentadiene 756-02-5 C8H14
2,3,3-三溴丙酸 tribromoacrylic acid 71815-46-8 C3HBr3O2
2,3,3-三氯-2-硫代丙烯酸O-甲基酯 Methyl trichlorothioacrylate 76619-91-5 C4H3Cl3OS
2,3,3-三氟-3-甲氧基丙酸甲酯 Methyl-3-methoxy-2,3,3-trifluorpropionat 758-69-0 C5H7F3O3
2,3,3,6-四氟-1,4-环己二烯 2,3,3,6-tetrafluoro-1,4-cyclohexadiene 74298-21-8 C6H4F4
2,3,3,4,5,6-六氯联苯 2,3,3',4',5',6-hexaachlorobiphenyl 74472-45-0 C12H4Cl6
2,3,3,4,4,4-六氟-2-(三氟甲基)丁酰氟 3,4,4,4-hexafluoro-2-(trifluoromethyl)butyryl fluoride 754-49-4 C5F10O
2,3,3,3-四氟丙烯 2,3,3,3-tetrafluoropropene 721945-86-4 C4H5F3
2,3,3,3-四氟丙烯 2,3,3,3-tetrafluoro-propene 754-12-1 C3H2F4
2,3,3,3-四氟-2-[1,1,2,3,3,3-六氟-2-(七氟丙氧基)丙氧基]丙酸乙酯 2'-perfluoropropoxy-2-perfluoropropoxyperfluoropropanoic acid ethyl ester 76145-88-5 C11H5F17O4
2,3,3,3-四氟-2-(全氟戊氧基)丙-1-醇 2,3,3,3-Tetrafluoro-2-(perfluoropentoxy)propan-1-OL 78693-85-3 C8H3F15O2
2,3,3,3-四氟-2-(三氟甲基)丙醛 heptafluoroisobutyraldehyde 7450-64-8 C4HF7O
2,3,3,3-四氟-1-(4-甲基苯基)-1-丙酮 2,3,3,3-Tetrafluoro-1-(4-methylphenyl)propan-1-one 76435-42-2 C10H8F4O
2,3,3'5-四氯联苯 2,3,3',5-tetrachlorobiphenyl 70424-67-8 C12H6Cl4
2,3,3',5,6-五氯联苯 2,3,3',5,6-pentachlorobiphenyl 74472-36-9 C12H5Cl5
2,3,3',5,5',6-六氯联苯 2,3,3',5,5',6-hexachlorobiphenyl 74472-46-1 C12H4Cl6
2,3,3',4-四氯联苯 2,3,3',4-tetrachlorobiphenyl 74338-24-2 C12H6Cl4
2,3,3',4,6-五氯联苯 2,3,3',4,6-pentachlorobiphenyl 74472-35-8 C12H5Cl5
2,3,3',4,5-五氯联苯 2,3,3',4,5-pentachlorobiphenyl 70424-69-0 C12H5Cl5
2,3,3',4,5,5',6-七氯联苯 2,3,3',4,5,5',6-heptachlorobiphenyl 74472-51-8 C12H3Cl7
2,3,3',4,5'-五氯联苯 2,3,3',4,5'-pentachlorobiphenyl 70362-41-3 C12H5Cl5
2,3,3',4,4',6-六氯联苯 2,3,4,4',5',6-hexachlorobiphenyl 74472-42-7 C12H4Cl6
2,3,3',4,4',5',6-七氯联苯 2,3,3',4,4',5',6-heptachlorobiphenyl 74472-50-7 C12H3Cl7
2,3,3',4',5-五氯联苯 2,3,3',4',5-pentachlorobiphenyl 70424-68-9 C12H5Cl5
2,3,3',4',5,6-六氯联苯 2,3,3',4',5,6-hexaachlorobiphenyl 74472-44-9 C12H4Cl6
2,3'-二硝基联苯 2,3'-dinitrobiphenyl 7391-72-2 C12H8N2O4
2,3'-二氰基二苯乙烯苯 2-2-4-2-(3-Cyanophenyl)vinylphenylvinylbenzonitrile 79026-03-2 C24H16N2
2,3',5',6-四氯联苯 2,3',5',6-tetrachlorobiphenyl 74338-23-1 C12H6Cl4
2,3',5',6-四(2-甲基-2-丙基)-1,1'-联(2,5-环己二烯-1-亚基)-4,4'-二酮 3.3'.5.5'-Tetra-tert-butyl-diphenochinon 74978-25-9 C28H40O2
2,3',4,5'-四氯联苯 2,3',4,5'-tetrachlorobiphenyl 73575-52-7 C12H6Cl4
2,3'',4,5-四氯联苯 2,3',4,5-tetrachlorobiphenyl 73575-53-8 C12H6Cl4