5-Bromoquinazolin-6-ylthiourea;N-(5-BROMOQUINOXALIN-6-YL)THIOUREA;5-Bromoquinaxolin-6-ylthiourea;N-(5-bromo-6-quinoxalinyl)thioure;Thiourea,N-(5-broMo-6-quinoxalinyl)-;(5-BroMo-6-quinoxalinyl)thiourea;N-(5-BroMo-6-quinoxalinyl)thiourea;Brimonidine EP Impurity D