1H-Pyrrolo(2,3-f)quinoline-2,7,9-tricarboxylic acid, 4,5-dihydro-4,5-dioxo- 2,7,9-Tricarboxy-1H-pyrrolo(2,3-f)quinoline-4,5-dione 2,7,9-Tricarboxypyrroloquinoline quinone 4,5-Dihydro-4,5-dioxo-1-H-pyrrolo(2,3-f)quinoline-2,7,9-tricarboxylic acid 72909-34-3 Coenzyme pqq Methoxatin Pqq coenzyme Pqq cofactor Pyrrolo-quinoline quinone