| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| —— | 2-Methoxy-6-methyl-pyridin-3,4-dicarbonsaeure | 103441-88-9 | C9H9NO5 |
| 2,7-二硼酸酯-9,9'-螺二芴 | 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[fluorene] | 728911-52-2 | C37H38B2O4 |
| 2,7-二氯芴-4-环氧乙烷 | 2,7-dichlorofluorene-4-oxirane | 53221-14-0 | C15H10Cl2O |
| 2,6-二甲基烟酸乙酯/2,6-二甲基-3-羧酸甲酯 | ethyl 2,6-dimethylnicotinate | 1721-13-7 | C10H13NO2 |
| 2,6-二甲基喹啉 | 2,6-dimethylquinoline | 877-43-0 | C11H11N |
| 2,6-二溴喹喔啉 | 2,6-dibromoquinoxaline | 175858-10-3 | C8H4Br2N2 |
| 2,6-二氯吡啶-4-偕胺肟盐酸盐 | 2,6-dichloropyridine-4-carboximidamide hydrochloride | 175204-59-8 | C6H5Cl2N3*ClH |
| 2,6-二氯-4-氟苯甲醛 | 2,6-dichloro-4-fluorobenzaldehyde | 1182709-86-9 | C7H3Cl2FO |
| 2,6-二氯-4-氟苯甲酸 | 2,6-dichloro-4-fluorobenzoic acid | 232275-55-7 | C7H3Cl2FO2 |
| 2,6-二氮杂螺[3.5]壬烷-2-甲酸苄酯 | Benzyl 2,6-diazaspiro[3.5]nonane-2-carboxylate | 1086394-83-3 | C15H20N2O2 |
| 2,6-二氨基庚二酸 | meso-2,6-diaminopimelic acid | 2577-62-0 | C7H14N2O4 |
| 2,5-二氯硫代苯-3-碳酰氯 | 2,5-dichlorothiophene-3-carbonyl chloride | 57248-14-3 | C5HCl3OS |
| 2,5-二氯甲苯 | 2,5-dichlorotoluene | 19398-61-9 | C7H6Cl2 |
| 2,5-二氯异烟酸乙酯 | ethyl-2-chloro-5-chloroisonicotinate | 603122-76-5 | C8H7Cl2NO2 |
| 2,5-二氯-4,6-二甲基烟酸 | 2,5-dichloro-4,6-dimethylnicotinic acid | 142266-66-8 | C8H7Cl2NO2 |
| 2,4,6-三(4-(溴甲基)苯基)-1,3,5-三嗪 | 2,4,6-tris[4-(bromomethyl)phenyl]-1,3,5-triazine | 1169964-41-3 | C24H18Br3N3 |
| 2,4,6-三硝基间苯二酚,收敛酸 | styphnic acid | 82-71-3 | C6H3N3O8 |
| 2,4-二羟基-6-三氟甲基烟酸乙酯 | ethyl 4-hydroxy-2-oxo-6-(trifluoromethyl)-1,2-dihydropyridine-3-carboxylate | 947144-28-7 | C9H8F3NO4 |
| 2,4-二甲氧基-5-硝基苯甲酸 | 2,4-dimethoxy-5-nitrobenzoic acid | 90564-41-3 | C9H9NO6 |
| 2,4-二甲基-3-[2-(甲基苯基)二氮]-6-黄酰苄腈 | 3-chloro-5-fluoro-2-methylbenzenesulfonyl chloride | 306937-30-4 | C7H5Cl2FO2S |
| 2,4-二氯-6-甲基苯-1-磺酰氯 | 2,4-dichloro-6-methylbenzenesulfonyl chloride | 175278-26-9 | C7H5Cl3O2S |
| 2,4-二氯-6-三氟甲基吡啶 | 2,4-dichloro-6-trifluoromethylpyridine | 39891-02-6 | C6H2Cl2F3N |
| 2,4-二氨基三氟甲苯 | 1,3-diamino-4-trifluoromethylbenzene | 17139-64-9 | C7H7F3N2 |
| 2,4-二亚硝基间苯二酚 | 2,4-dinitrosoresorcinol | 118-02-5 | C6H4N2O4 |
| 2,3,3-三甲基戊烷 | 2,3,3-Trimethyl-pentane | 560-21-4 | C8H18 |
| 2,3-萘二酐 | 2,3-Naphthalenedicarboxylic anhydride | 716-39-2 | C12H6O3 |
| 2,3-双(4-溴苯基)-2-丁烯二腈 | bis(4-bromophenyl)fumaronitrile | 82193-93-9 | C16H8Br2N2 |
| 2,3-二甲基戊醛 | 2,3-dimethylvaleraldehyde | 32749-94-3 | C7H14O |
| 2,3-二甲基吲哚 | 2,3-dimethyl-2,3-dihydro-1H-indole | 22120-50-9 | C10H13N |
| 2,3-二溴-1-丙胺氢溴酸盐 | 2,3-dibromopropylamine hydrobromide | 6963-32-2 | BrH*C3H7Br2N |
| 2,3-二氟-4-氨基苯甲酸甲酯 | methyl 4-amino-2,3-difluorobenzoate | 886497-08-1 | C8H7F2NO2 |
| 2,3-(异丙叉二氧)苯基甲基氨基甲酸酯 | 3-(5'-chloro-2'-benzoxazole)-7-diethylamino-2H-1-benzopyran-2-one | 35773-43-4 | C20H17ClN2O3 |
| 2,2’,3,4,4’-五羟基二苯甲酮 | 2,3,4,2',4'-pentahydroxy-benzophenone | 92379-42-5 | C13H10O6 |
| 2,2’-联萘酚 | 2,2'-binaphthalene | 612-78-2 | C20H14 |
| 2肼基-4-甲基-1,3-噻唑 | 2-hydrazino-4-methyl-thiazole | 78886-45-0 | C4H7N3S |
| 2甲酯-3-托品酮 | 2-Methoxycarbonyl-3-tropanon | 36127-17-0 | C10H15NO3 |
| 2甲4氯钠 | —— | 3653-48-3 | C9H9ClNaO3 |
| 2甲4氯苯氧基乙酸 | isooctyl 2-methyl-4-chlorophenoxyacetate | 26544-20-7 | C17H25ClO3 |
| 2甲4氯硫代乙酯 | MCPA-thioethyl | 25319-90-8 | C11H13ClO2S |
| 2甲4氯氯苯胺 | 2'-chloro-2-(4-chloro-o-methylphenoxy)acetanilide | 2453-96-5 | C15H13Cl2NO2 |
| 2甲4氯丙酸2-乙基己酯 | 2-Ethylhexyl 2-(4-chloro-2-methylphenoxy)propanoate | 71526-69-7 | C18H27ClO3 |
| 2甲4氯丙酸-2-丁氧基乙基酯 | 2-Butoxyethyl 2-(4-chloro-2-methylphenoxy)propionate | 23359-62-8 | C16H23ClO4 |
| 2甲4氯丁酸乙酯 | ethyl 4-(4-chloro-2-methylphenoxy)butyrate | 10443-70-6 | C13H17ClO3 |
| 2甲4氯丁酸 | MCPB | 94-81-5 | C11H13ClO3 |
| 2氯-4-三氟甲基苯乙酮 | 1-(2-chloro-4-(trifluoromethyl)phenyl)ethan-1-one | 129322-81-2 | C9H6ClF3O |
| 2氢-四唑, 5-[4-苯硼酸酯] | 5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-tetrazole | 775351-40-1 | C13H17BN4O2 |
| 2氟3溴5硝基吡啶 | 3-bromo-2-fluoro-5-nitropyridine | 1868-58-2 | C5H2BrFN2O2 |
| 2乙基-1H-苯并-4-羧基酸 | 2-ethyl-1(3)<i>H</i>-imidazole-4-carboxylic acid | 84255-21-0 | C6H8N2O2 |
| 2一(E)-亚苄基环戊酮 | (E)-2-benzylidenecyclopentanone | 1921-90-0 | C12H12O |
| 2一(E)-(4-甲氧基)亚苄基环戊酮 | 2-(4-methoxybenzylidene)cyclopentanone | 58647-67-9 | C13H14O2 |