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Pyrroloquinoline quinone

Also known as: Methoxatin, PQQ, Coenzyme PQQ, 4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid, 4,5-dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid, 2,7,9-Tricarboxy-1H-pyrrolo(2,3-f)quinoline-4,5-dione, Pyrroloquinoline quinone, 98%, Methoxatine

Pyrroloquinoline quinone (CAS 72909-34-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H6N2O8 and a molecular weight of 330.206 g/mol. Key properties include a boiling point of 1018.6±65.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 569.8±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
72909-34-3
Jingsj CID
J-12547-9
Molecular Formula
C14H6N2O8
Molecular Weight
330.206 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point1018.6±65.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point569.8±34.3 °C
Exact Mass330.012421
PSA174.72000
LogP-0.65
Vapor Pressure0.0±0.3 mmHg at 25°C
Refractive Index1.801
Storage Conditions2-8°C
StabilityLight and Temperature Sensitive

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. Moog RS, et al. Evidence for methoxatin (pyrroloquinolinequinone) as the cofactor in bovine plasma amine oxidase from resonance Raman spectroscopy. Proc Natl Acad Sci U S A. 1986 Nov;83(22):8435-9. [2]. Bishop A, et al. Methoxatin (PQQ) in guinea-pig neutrophils. Free Radic Biol Med. 1994 Oct;17(4):311-20.

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Pyrroloquinoline quinone?

The CAS number of Pyrroloquinoline quinone is 72909-34-3.

What are the molecular formula and molecular weight of Pyrroloquinoline quinone?

Pyrroloquinoline quinone has molecular formula C14H6N2O8 and molecular weight 330.206 g/mol.

What are the upstream and downstream products of Pyrroloquinoline quinone?

For Pyrroloquinoline quinone, Upstream Products: trimethyl 4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylate, Ethyl 5-hydroxy-1H-indole-2-carboxylate; Downstream Products: 4-Hydroxybenzyl alcohol, Benzaldehyde, trimethyl 4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Pyrroloquinoline quinone (CAS 72909-34-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12547-9 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.