(+-)-2-(4-(6-Chloro-2-quinoxalinyloxy)phenoxy)propanoic acid (9CI) (RS)-2-(4-(6-Chloroquinoxalin-2-yloxy)phenoxy)propionic acid 76578-12-6 Propanoic acid, 2-(4-((6-chloro-2-quinoxalinyl)oxy)phenoxy)- Quizalofop Quizalofop [BSI:ISO]