为解决胶原酶免疫原性，采用经氯甲酸对硝基苯酯活化的单甲氧基聚乙二醇来修饰胶原酶。
In order to overcome the immunogenicity of collagenase, the enzyme was modified with monomethoxypolyethylene glycol 5000 (mPEG) activated by p nitrophenyl chloroformate.
它主要由苯甲酰氯和苯酚制备苯甲酸苯酯，然后重排、醚化所得。
It is based on phenol benzoate which is made from benzoyl chloride and phenol through rearrangement and etherification.
毛细管柱，以邻苯二甲酸二丁酯为内标物，以氢火焰离子化检测器对杀虫剂氯烯炔菊酯原药进行定性定量分析。
A gas chromatographic method for quantitative and qualitative analysis of chlorempenthrin using a HP-5 capillary column and dibutyl phthalate as internal standard was described.
以2，4-二羟基苯甲酸甲酯为原料，经过氯代反应、水解反应、脱羧反应合成2，4-二氯间苯二酚。
The compound 2,4-dichlororesorcinol was obtained from the starting material 2,4-dihydroxybenzoate via chlorinated reaction, hydrolysis and decarboxylation.
以2，4-二羟基苯甲酸甲酯为原料，经过氯代反应、水解反应、脱羧反应合成2，4-二氯间苯二酚。
The compound 2,4-dichlororesorcinol was obtained from the starting material 2,4-dihydroxybenzoate via chlorinated reaction, hydrolysis and decarboxylation.
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