英文别名Erlotinib impurity 1; Erlotinib Impurity 16; 4-Chloro-6,7-bis-(2-chloro-ethoxy)-quinazoline; Erlotinib Impurity P; Erlotinib-1; Erlotinib Hydrochloride Impurity 1; 4-chloro-6,7-bis(2-chloroethoxy)quizoline; 4-Chloro-6,7-Bis-(2-Chloroethoxy)Quinazo; Erlotinib impurity 8; Quinazoline, 4-chloro-6,7-bis(2-chloroethoxy)- 
