2. 埃罗替尼杂质2(4-氯-7-(2-氯乙氧基)-6-(2-甲氧基乙氧基)-喹唑啉)

埃罗替尼杂质2(4-氯-7-(2-氯乙氧基)-6-(2-甲氧基乙氧基)-喹唑啉)

Erlotinib Impurity 2 (4-Chloro-7-(2-Chloroethoxy)-6-(2-Methoxyethoxy)-Quinazoline)