美国通知可提供其环保署有关杀虫剂 吡唑啉 ( Pyrazon )的重新注册决定,并启动公众评议期. 吡唑啉 是一种除草剂,用于控制甜菜,红甜菜及观赏植物里的杂草.
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Pyrazoline is extremely important five heterocyclic compounds of contain nitrogen. There are many ways of synthesis of such compounds.
吡唑啉是极为重要的含氮五元杂环化合物,目前合成此类化合物已经有很多方法。
参考来源 - 吡唑啉及其衍生物的合成与抗菌活性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本发明的吡唑啉吡啶并香豆素染料衍生物具有式（I）或 式（II）所示结构。
The pyrazoline naphthyridine coumarin fluorescent dye derivative has structure as seen in formula I or formula II.
本发明的吡唑啉吡啶并苯 并香豆素染料衍生物具有式（I）或式（II）所示结构。
The pyrazoline naphthyridine benzocoumarin fluorescent dye derivatives have a structure shown in a formula (I) or a formula (II).
合成了一种新型铁络合偶氮染料，其母体染料由间氨基对羟基苯酚对磺酸和1-间氯苯-3-甲基吡唑啉酮偶合而成。
A new Fe-azo complex dyestuff was synthesized by complexing iron salt with the pre-dyestuff that was prepared from the o-aminophenolsulfonic acid and Cl-substituted pyrazolone.
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