| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 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 |
| 2,2’-硫代双乙醇和环氧乙烷的聚合物 | 2-(2-Hydroxyethylsulfanyl)ethanol;oxirane | 72231-01-7 | C6H14O3S |
| 2,2’-亚甲基双(4-(1,1-二甲基乙基)苯酚 | bis(5-tert-butyl-2-hydroxyphenyl)methane | 799-13-3 | C21H28O2 |
| 2,2’-二碘-9,9’-螺二芴 | 2,2'-diiodo-9,9'-spirobifluorene | 790674-48-5 | C25H14I2 |
| 2,2’-二甲基-4,4’-联吡啶 | 2,2'-dimethyl-4,4'-bipyridine | 712-61-8 | C12H12N2 |
| 2,2’-[[3-甲基-4-[(6-硝基-2-苯并噻唑基)偶氮]苯基]亚氨基]双乙醇双乙酸酯 | 2,2'-[[3-Methyl-4-[(6-nitrobenzothiazol-2-YL)azo]phenyl]imino]bisethyl diacetate | 70660-53-6 | C22H23N5O6S |
| 2,2’-[(1,4-二氧代-2-丁烯基-1,4-二基)二[亚氨基(2-甲基-4,1-苯亚基)偶氮]]二[5-[(4-磺苯基)偶氮]]苯磺酸四钠盐 | Benzenesulfonic acid, 2,2'-((1,4-dioxo-2-butene-1,4-diyl)bis(imino(2-methyl-4,1-phenylene)azo))bis(5-((4-sulfophenyl)azo)-, tetrasodium salt | 72252-60-9 | C42H30N10Na4O14S4 |
| 2,2’-(偶氮二对亚苯基)双(6-甲基苯并噻唑磺酸)二钠 | 2,2'-(Azodi-p-phenylene)bis6-methylbenzothiazolesulphonate (sodium salt) | 71033-21-1 | C28H18N4Na2O6S4 |
| 2,2’-(4-氨基苯基亚氨基)二乙醇 | N,N-bis(2-hydroxyethyl)-4-aminoaniline | 7575-35-1 | C10H16N2O2 |
| 2,2’-(3,5,5-三甲基亚己基)双[4,6-二甲基苯酚] | 1,1-bis(2-hydroxy-3,5-dimethylphenyl)-3,5,5-trimethylhexane | 7292-14-0 | C25H36O2 |