常见例句bis (3-nitrofurazan-4) picryl ether 双（3-硝基呋咱基-4）苦基醚Keywords 2;4;6-trinitrophenylhydrazine;picryl chloride;hydrazine hydrate;synthesis method; 三硝基苯肼;三硝基氯苯;水合肼;合成工艺;picryl 2 4,6-三硝基苯基picryl acetate 醋酸苦味基酯picryl amine 苦基胺 返回 picryl