1-(N-((6-Bromo-2-quinoxalinyl)carbonyl)-D-serine)-5-(N-((6-bromo-2-quinoxalinyl)carbonyl)-D-serine)triostin A 85502-74-5 Triostin A, 1-(N-((6-bromo-2-quinoxalinyl)carbonyl)-D-serine)-5-(N-((6-bromo-2-quinoxalinyl)carbonyl)-D-serine)-