157434-99-6 NSC 656889 Propanoic acid, 2-(4-((7-chloro-2-quinoxalinyl)oxy)phenoxy)-, sodium salt Propanoic acid, 2-(4-((7-chloro-2-quinoxalinyl)oxy)phenoxy)-, sodium salt, (+-)- Sodium 2-(4-((7-chloro-2-quinoxalinyl)oxy)phenoxy)propionate XB 469