| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 20261-68-1 | | 1-Chloro-hexan-2-one | C6H11ClO | 134.60 | | |
| 20261-85-2 | | dinactin | | | | |
| 20262-55-9 | | 2,3-dihydro-1,3-dioxo-1h-isoindole-5-carboxylic aci | | | | |
| 20262-58-2 | C.I.活性橙16 | 2-Naphthalenesulfonic acid, 6-(acetylamino)-4-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, disodium salt | C20H19N3O11S3·2Na | | | |
| 20262-76-4 | | ethanaminium, n-[4-[[4-(diethylamino)phenyl](5-hydroxy-2,4-disulfophenyl)methyl | C27H31N2NaO7S2 | 582.66 | | |
| 20263-06-3 | | dl-2-amino-3-phosphonopropionic acid | C3H8NO5P | 169.07 | 227-229℃ | |
| 20263-07-4 | | dl-2-amino-4-phosphonobutyric acid | C4H10NO5P | 183.10 | 225-228℃ | |
| 20263-87-0 | | (3-(2,6-xylyl)propyl)-ure | | | | |
| 20264-89-5 | | 1-(4-nitrophenyl)-1,3-butadiene | | | | |
| 20264-90-8 | | 1-(4-nitrophenyl)-6-phenylhexatriene | C18H15NO2 | 277.32 | | |
| 202646-80-8 | | fr194921 | | | | |
| 20265-35-4 | | 2-methoxy-3-nitropyridine | C6H6N2O3 | 154.12 | | |
| 20265-37-6 | 2-硝基-3-甲氧基吡啶 | methoxynitropyridine | C6H6N2O3 | 154.12 | | |
| 20265-38-7 | 3-氨基-2-甲氧基吡啶 | 3-amino-2-methoxypyridine | | | | |
| 20265-39-8 | 4-氨基-2-甲氧基吡啶 | 2-Methoxy-4-aminopyridine | | | | |
| 20265-96-7 | 4-氯苯胺盐酸盐 | p-chloro-anilin hydrochloride | C6H7Cl2N | 164.03 | | |
| 20265-97-8 | | p-anisidine, hydrochloride | C7H9NO.HCl | 159.61 | 216-219℃ | |
| 202653-35-8 | | tert-butyl 3-[(2,2-diethoxyethyl)amino]propanoate | | | | |
| 202656-12-0 | | 2,4-dichlorophenol (ring-d3, od, 98%) | | | | |
| 202656-13-1 | | tris(hydroxymethyl-d3)amino-d2-methane | | | | |
| 202656-15-3 | 可替宁-d3 溶液 | | | | | |
| 202656-22-2 | | catechol (d6, 98%) | | | | |
| 202656-23-3 | | 1,3-dichloropropene (d4, 98%) cis/trans mix | | | | |
| 202658-88-6 | n-(氯乙酰基)甲基磺酰胺 | 2-chloro-n-(methylsulfonyl)acetamide | | | | |
| 20266-00-6 | 1-(氯乙酰基)吡咯烷 | 1-(chloroacetyl)pyrrolidine | | | | |
| 20266-01-7 | 桂哌齐特杂质7 | cinepazide impurity 7 | | | | |
| 20266-25-5 | 4-[(2-氯苯基)氨基]-4-氧代丁酸 | 4-[(2-chlorophenyl)amino]-4-oxobutanoic acid | | | | |
| 20266-62-0 | | 5-hydroxy-hexanoic acid ethyl ester | | | | |
| 2026618-65-3 | ubch5b 人 | ubch5b human | | | | |
| 202664-32-2 | | 3-(2-amino-thiazol-4-yl)-benzonitrile | | | | |
| 202664-36-6 | | 2-bromo-1-(2-fluoro-5-(trifluoromethyl)phenyl)ethanone | | | | |
| 202664-53-7 | | 2-fluoro-5-(trifluoromethyl)acetophenone | C9H6F4O | 206.13 | | |
| 202664-54-8 | | 3-fluoro-5-(trifluoromethyl)acetophenone | C9H6F4O | 206.13 | | |
| 202667-45-6 | 1,2,3,5-四氢-6-甲基二环戊二烯并苯 | 6-methyl-1,2,3,5-tetrahydro-s-indacene | | | | |
| 20267-56-5 | | ethanebis(thioic) acid, dipotassium salt | | | | |
| 20267-74-7 | | carbamimidothioic acid, pentyl ester | | | | |
| 20267-87-2 | | chelidonine monohydrate | C20H19NO5.H2O | 371.38 | 135-136℃ | |
| 20268-21-7 | | n-(2-phenylethylidene)hydroxylamine | | | | |
| 20268-38-6 | | 4,5-dihydro-2-[(phenylmethyl)thio]-1h-imidazol | C10H12N2S | 192.27 | | |
| 20268-51-3 | | 7-nitro-benz(a)anthracen | | | | |
| 20268-52-4 | | 7-chloro-benz(a)anthracen | | | | |
| 2027-12-5 | | 1-cyclohexyl-1-(4-methylcyclohexyl)-ethane | C15H28 | 208.38 | | |
| 2027-13-6 | | 1-cyclohexyl-1-(4-ethyl-cyclohexyl)-ethane | C16H30 | 222.41 | | |
| 2027-14-7 | | 1-cyclohexyl-1-(3,4,6-trimethyl-cyclohexyl)-ethane | C17H32 | 236.44 | | |
| 2027-15-8 | | 1-cyclohexyl-1-(4-isopropyl-cyclohexyl)-ethane | C17H32 | 236.44 | | |
| 2027-17-0 | | 2-isopropyl-naphthalen | C13H14 | 170.25 | | 124℃ |
| 2027-47-6 | 9-十八碳烯酸 | | C18H34O2 | | | |
| 2027-49-8 | | l-pyrrolidin | | | | |
| 20270-50-2 | | bis(3,5,5-trimethylhexyl) adipate | C24H46O4 | 398.62 | | |
| 20270-53-5 | 己二酸二叔丁酯 | di-tert-butyl adipate | | | | |
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