英文别名Erlotinib Impurity 15; 6-(2-chloroethoxy)-7-(2-Methoxyethoxy)-4-chloroquinazoline; Erlotinib Impurity 42; Erlotinib impurity K; Erlotinib Hydrochloride Impurity 39; Erlotinib Hydrochloride Impurity 42; Quinazoline, 4-chloro-6-(2-chloroethoxy)-7-(2-methoxyethoxy)- 
