英文别名2-N-BUTYL-1,3-DIAZA-SPIRO[4,4]NON-1-EN-4-ONE HCL; 8-butyl-7,9-diazaspiro[4.4]non-8-en-6-one hydrochloride; Irbesartan Impurity 11 HCl; Irbesartan Impurity 19; 1,3-Diazaspiro[4.4]non-1-en-4-one, 2-butyl-, hydrochloride; 1,3-diazaspiro[4.4]non-2-en-4-one, 2-butyl-, hydrochloride (1:1); 2-butyl-1,3-diazaspiro[4.4]non-1-en-4-one,hydrochloride; 2-n-Butyl-1,3-diaza-spiro[4,4]non-1-en-4-one hydrochloride; 2-n-butyl-4-cyclopentane-2-imidazolin-5-one hydrochloride; 2-BUTYL-1,3-DIAZASPIRO(4.4)NON-1-EN-4-ONE HYDROCHLORIDE; 2-Butyl-1,3-diazaspiro[4.4]non-2-en-4-one hydrochloride (1:1); 1,3-Diazaspiro[4.4]non-1-en-4-one, 2-butyl-, hydrochloride (1:1); 2-Butyl-1,3-diazaspiro[4.4]non-1-en-4-one hydrochloride (1:1) 
