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CAS 72909-34-3

CAS 72909-34-3 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 72909-34-3
CAS 72909-34-3PubChem CID 1024

Pyrroloquinoline Quinone

Pyrroloquinoline quinone is a pyrroloquinoline having oxo groups at the 4- and 5-positions and carboxy groups at the 2-, 7- and 9-positions. It has a role as an antioxidant, a cofactor, a water-soluble vitamin (role) and an anti-inflammatory agent. It is a member of orthoquinones, a pyrroloquinoline cofactor and a tricarboxylic acid. It is a conjugate acid of a pyrroloquinoline quinone(3-). — ChEBI

IUPAC name
4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid
Molecular formula
C14H6N2O8
Molecular weight
330.21 g/mol
Exact mass
330.01241515 Da
XLogP3
-0.1
Topological polar surface area
175.0 Ų
Hydrogen-bond donors
4
Hydrogen-bond acceptors
9
Covalent units
1
Defined stereocentres
0

Also known as

methoxatinCoenzyme pqqPyrrolo-quinoline quinonePqq coenzymePqq cofactor4,5-dioxo-1H,4H,5H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid2,7,9-Tricarboxypyrroloquinoline quinoneCHEBI:18315
16 more reported names
2,7,9-Tricarboxy-1H-pyrrolo(2,3-f)quinoline-4,5-dionepyrroloquinolinedione tricarboxylic acid1H-Pyrrolo(2,3-f)quinoline-2,7,9-tricarboxylic acid, 4,5-dihydro-4,5-dioxo-2,4,6-tricarboxylic-pyrrolo[2,3-5,6]quinoline 8,9-quinoneCoenzyme, PQQCofactor, PQQPQQ, CoenzymeQuinone, PyrroloquinolinePyrrolo Quinoline QuinoneQuinone, Pyrrolo-Quinoline2,4,6-tricarboxylic-pyrrolo(2,3-5,6)quinoline 8,9-quinone4,5-dioxo-1H-pyrrolo(2,3-f)quinoline-2,7,9-tricarboxylic acid4,5-dioxo-1H,4H,5H-pyrrolo(2,3-f)quinoline-2,7,9-tricarboxylic acid1H-Pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid, 4,5-dihydro-4,5-dioxo-4,5-dihydro-4,5-dioxo-1H-pyrrolo(2,3-5,6)quinoline-2,7,9-tricarboxylic acid4,5-dihydro-4,5-dioxo-1H-pyrrolo[2,3-5,6]quinoline-2,7,9-tricarboxylic acid
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 72909-34-3

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How CAS 72909-34-3 is used on this site

CAS 72909-34-3 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 72909-34-3 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.