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报道了以己内酰胺和1-溴代正十二烷为原料，采用液-液相转移催化法合成新型皮肤渗透促进剂桂氮酮产品中主要杂质的分离与鉴定．结果表明，产品中的主要杂质为未反应的原料己内酰胺和副产物6-氨基己酸正十二烷基酯与正十二醚．
This paper reports the separation and identification of major impurities in a new skin permeation enhancer Azone from caprolactam and 1 - bromo - n - dodecane synthesized by liquid - liquid phase transfer catalysis. The results showed that the main impurities in the product were unreacted caprolactam and by-products 6-aminohexanoic acid n-dodecyl ester and n-dodecyl ether.