| 序号 | 中文名称 | 英文名称 |
|---|---|---|
| 249 | 7,11-二甲基-4,6,10-十二碳三烯-3-酮 | 7,11-Dimethyl-4,6,10-dodecatrien-3-one (Pseudomethylionone ) (CAS No. 26651-96-7) |
| 250 | 7-乙氧基-4-甲基香豆素 | 7-Ethoxy-4-methylcoumarin (CAS No. 87-05-8) |
| 251 | 7-甲氧基香豆素 | 7-Methoxycoumarin (CAS No. 531-59-9) |
| 252 | 7-甲基香豆素 | 7-Methylcoumarin (CAS No. 2445-83-2) |
| 253 | (8-((4-氨基-2-硝基苯基)偶氮)-7-羟基-2-萘基)三甲铵及其盐类(在碱性棕 17 中作为杂质存在的碱性红 118 除外) | (8-((4-Amino-2-nitrophenyl)azo)-7-hydroxy-2-naphthyl) trimethylammonium (CAS No. 71134-97-9) and its salts, except Basic Red 118 as impurity in Basic Brown 17 |
| 254 | 9,10-蒽醌, 1-((2-羟乙基)氨基)-4-(甲氨基)-及其衍生物和盐类 | 9,10-Anthracenedione, 1-((2-hydroxyethyl)amino)-4-(methylamino)- and its derivatives and salts (CAS No. 2475-46-9 / CAS No. 86722-66-9) |
| 255 | 9-乙烯基咔唑 | 9-Vinylcarbazole (CAS No. 1484-13-5) |
| 256 | α, α, α-三氯甲苯 | α, α, α-Trichlorotoluene (CAS No. 98-07-7) |