It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.
确定以硫酸二甲酯为N——甲基剂,对对氨基苯甲酸PABA进行N——二甲基.
It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.
确定以硫酸二甲酯为N——甲基剂,对对氨基苯甲酸PABA进行N——二甲基.
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