| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 2,3,4,5-四氟苯基二氟硼烷 | 2,3,4,5-tetrafluorophenyldifluoroborane | 263243-16-9 | C6HBF6 |
| 2,3,4,5-四氟甲苯 | 2,3,4,5-tetrafluorotoluene | 21622-19-5 | C7H4F4 |
| 2,3,4,5-四氟-6-硝基联苯 | 2,3,4,5-tetrafluoro-6-nitrobiphenyl | 29636-82-6 | C12H5F4NO2 |
| 2,3,4,5-四-O-硬脂酰-D-山梨糖醇 | Tetrastearoyl-D-glucit | 29780-99-2 | C78H150O10 |
| 2,3,4,5,6-五甲基苯酚 | pentamethylphenol | 2819-86-5 | C11H16O |
| 2,3,4,5,6-五甲基苯甲酸 | pentamethylbenzoic acid | 2243-32-5 | C12H16O2 |
| 2,3,4,5,6-五甲基苯甲酮 | 2,3,4,5,6-pentamethylbenzophenone | 20386-33-8 | C18H20O |
| 2,3,4,5,6-五甲基庚烷 | 2,3,4,5,6-pentamethyl-heptane | 27574-98-7 | C12H26 |
| 2,3,4,5,6-五溴苯甲醛 | 2,3,4,5,6-pentabromobenzaldehyde | 22230-42-8 | C7HBr5O |
| 2,3,4,5,6-五溴硝基苯 | pentabromonitrobenzene | 22230-46-2 | C6Br5NO2 |
| 2,3,4,5,6-五溴吡啶 | pentabromopyridine | 2402-94-0 | C5Br5N |
| 2,3,4,5,6-五氯苯磺酰氯 | pentachlorobenzenesulfonyl chloride | 26120-85-4 | C6Cl6O2S |
| 2,3,4,5,6-五氯氯苄 | α,α,2,3,4,5,6-pentachlorotoluene | 2136-78-9 | C7H2Cl6 |
| 2,3,4,5,6-五氯-N-(二氯亚甲基)苯胺 | pentachlorophenyl-carbonimidic acid dichloride | 2666-66-2 | C7Cl7N |
| 2,3,4,5,6-五氯-3'-氟联苯 | 2,3,4,5,6-Pentachloro-3'-fluoro-1,1'-biphenyl | 29779-02-0 | C12H4Cl5F |
| 2,3,4,5,6-五氟-N-三甲基硅烷基苯胺 | pentafluorophenyl(trimethylsilyl)amine | 22529-97-1 | C9H10F5NSi |
| 2,3,4,5,6-五氟-N-(3,3',6'-三羟基-3H-螺[2-苯并呋喃-1,9'-氧杂蒽]-5-基)苯甲酰胺 | 5-(Pentafluorobenzoylamino)Fluorescein | 209540-56-7 | C27H14F5NO6 |
| 2,3,4,5,6-五乙基吡啶 | pentaethylpyridine | 281659-17-4 | C15H25N |
| 2,3,4,5,6,7-六羟基庚醛 | D-glycero-L-gluco-heptose | 23102-92-3 | C7H14O7 |
| 2,3,4,5,6,7-六甲基茚 | hexamethylindene | 21866-46-6 | C15H20 |
| 2,3,4,5,6,7-六氢-1H-茚-1-酮 | 4,5,6,7-tetrahydroindan-1-one | 22118-00-9 | C9H12O |
| 2,3,4,5,6,7,8,9-八氢-9-甲基-1H-咔唑 | N-Methyl-1,2,3,4,5,6,7,8-octahydrocarbazol | 23518-22-1 | C13H19N |
| 2,3,4,5,6,6-六氯-2,4-环己二烯-1-酮 | 2,2,3,4,5,6-hexachloro-cyclohexa-2,4-dien-1-one | 21306-21-8 | C6Cl6O |
| 2,3,4,5,5,5-六氟-2,4-二(三氟甲基)-1-戊醇 | 1,1,3-trihydroperfluoro-2,4-dimethylpentan-1-ol | 25065-50-3 | C7H4F12O |
| 2,3,4,4a,5,6-六氢-3-(3-羟基-3-甲基丁基)-1H-吡嗪并(1,2-a)喹啉 | 4-(1,2,4,4a,5,6-hexahydro-pyrazino[1,2-<i>a</i>]quinolin-3-yl)-2-methyl-butan-2-ol | 21621-38-5 | C17H26N2O |
| 2,3,4,4-四甲基环己-2-烯-1-酮 | 2,3,4,4-tetramethyl-2-cyclohexen-1-one | 28354-98-5 | C10H16O |
| 2,3,4,4-四氯丁-3-烯酸 | 2,3,4,4-tetrachloro-3-butenoic acid | 2892-54-8 | C4H2Cl4O2 |
| 2,3,4,4-四氯-3-丁烯酸丁酯 | Butyl 2,3,4,4-tetrachloro-3-butenoate | 2892-61-7 | C8H10Cl4O2 |
| 2,3,4,4,4-五氯巴豆酸丁酯 | 2-Butenoic acid, 2,3,4,4,4-pentachloro-, butyl ester | 21824-93-1 | C8H9Cl5O2 |
| 2,3,3a,4,5,6-六氢-8-甲基-1H-吡嗪并[3,2,1-j,k]咔唑甲磺酸酯 | Pirlindole mesylate | 207572-66-5 | C16H22N2O3S |
| 2,3,3-三苯基异吲哚-1-酮 | 2,3,3-triphenylphthalimidine | 23659-69-0 | C26H19NO |
| 2,3,3-三甲基丁腈 | 2,3,3-trimethylbutanenitrile | 21101-85-9 | C7H13N |
| 2,3,3-三甲基丁烷-2-胺 | 2,3,3-trimethylbutan-2-amine | 29772-54-1 | C7H17N |
| 2,3,3-三甲基-3H-吲哚-5-磺酸钠 | sodium 2,3,3-trimethyl-3H-indole-5-sulfonate | 287188-58-3 | C11H12NO3S*Na |
| 2,3,3-三甲基-2-戊醇 | 2,3,3-Trimethyl-2-pentanol | 23171-85-9 | C8H18O |
| 2,3,3-三甲基-1-丙基-3H-吲哚碘 | 2,3,3-trimethyl-1-propyl-3H-indolium iodide | 20205-29-2 | C14H20N*I |
| 2,3,3,5-四甲基吲哚 | 2,3,3,5-tetramethyl-3H-indole | 25981-82-2 | C12H15N |
| 2,3,3,4,4-五氟四氢呋喃 | 2,3,3,4,4-Pentafluoro-tetrahydro-furan | 204391-86-6 | C4H3F5O |
| 2,3,3,3-四氯丙酰氯 | α,β,β,β-Tetrachlor-propionylchlorid | 20618-09-1 | C3HCl5O |
| 2,3,3,3-四氟-2-[1,1,2,3,3,3-六氟-2-(2,3,4,5,6-五氟苯氧基)丙氧基]丙酰氟 | 2,3,3,3-tetrafluoro-2-[1,1,2,3,3,3-hexafluoro-2-(pentafluorophenoxy)propoxy]propionyl fluoride | 25711-77-7 | C12F16O3 |
| 2,3,3,3-四氟-2-(五氟苯氧基)丙酰氟 | 2,3,3,3-tetrafluoro-2-(pentafluorophenoxy)propionyl fluoride | 22304-57-0 | C9F10O2 |
| 2,3,3,3-四氟-2-(三氟甲氧基)丙酰氟 | perfluoro-2-methoxypropionyl fluoride | 2927-83-5 | C4F8O2 |
| 2,3,3,3-四氟-2-(1,1,2,2,3,3,3-七氟丙氧基)丙酸 | 4-Benzylamino-1,2,3-benzotriazin | 26944-65-0 | C14H12N4 |
| 2,3,3,3-四氟-1-苯基-1-丙酮 | phenyl 1,2,2,2,-tetrafluoroethyl ketone | 2267-65-4 | C9H6F4O |
| 2,3'-二甲基联苯胺 | 2,3'-dimethyl-benzidine | 2528-72-5 | C14H16N2 |
| 2,3'-二氯苯乙酮 | 3-chlorophenacyl chloride | 21886-56-6 | C8H6Cl2O |
| 2,3',4,6-四羟基二苯甲酮 | (3-hydroxyphenyl)(2,4,6-trihydroxyphenyl)methanone | 26271-33-0 | C13H10O5 |
| 2,3',4,6-四甲基二苯基砜 | 1,3,5-trimethyl-2-(m-tolylsulfonyl)benzene | 21128-93-8 | C16H18O2S |
| 2,2′-羟基偶氮苯 | 2,2'-Dihydroxyazobenzene | 2050-14-8 | C12H10N2O2 |
| 2,2′-磺酰基双乙醇 | sulfonyldiethanol | 2580-77-0 | C4H10O4S |