| 序号 | 中文名称 | 英文名称 |
|---|---|---|
| 217 | 4-苯基丁-3-烯-2-酮 | 4-Phenylbut-3-en-2-one (Benzylidene acetone) (CAS No. 122-57-6) |
| 218 | 4-叔丁基-3-甲氧基-2,6-二硝基甲苯(葵子麝香) | 4-tert-Butyl-3-methoxy-2,6-dinitrotoluene (Musk Ambrette) (CAS No. 83-66-9) |
| 219 | 4-叔丁基苯酚 | 4-tert-Butylphenol (CAS No. 98-54-4) |
| 220 | 4-叔丁基邻苯二酚 | 4-tert-Butylpyrocatechol (CAS No. 98-29-3) |
| 221 | 5-((4-(二甲氨基)苯基)偶氮)-1,4-二甲基-1H-1,2,4-三唑鎓及其盐类 | 5-((4-(Dimethylamino)phenyl)azo)-1,4-dimethyl-1H-1,2,4-triazolium (CAS No. 12221-52-2) and its salts |
| 222 | 5-(2,4-二氧代-1,2,3,4-四氢嘧啶)-3-氟-2-羟基甲基四氢呋喃 | 5-(2,4-Dioxo-1,2,3,4-tetrahydropyrimidine)-3-fluoro-2-hydroxymethylterahydrofuran (CAS No. 41107-56-6) |
| 223 | 5-(3-丁酰基-2,4,6-甲基苯基)-2-(1-(乙氧基亚氨基)丙基)-3-羟基环已-2-烯-1-酮 | 5-(3-Butyryl-2,4,6-trimethylphenyl)-2-(1-(ethoxyimino)propyl)-3-hydroxycyclohex-2-en-1-one (CAS No .138164-12-2) |
| 224 | 5-(a,b-二溴苯乙基)-5-甲基乙内酰脲 | 5-(a,b-Dibromophenethyl)-5-methylhydantoin (CAS No. 511-75-1) |