Methoxatin disodium salt , ≥97.0%(HPLC) , 122628-50-6

Synonym(s):
PQQ;Pyrrolo-quinoline-quinone disodium salt

CAS NO.：122628-50-6

Empirical Formula: C14H4N2Na2O8

Molecular Weight: 374.17

MDL number: MFCD00151711

PRODUCT Properties

• storage temp.: 2-8°C
• form: Solid
• color: Pink to red
• biological source: fermentation/recombinant
• Water Solubility: Water : 6.16 mg/mL (16.46 mM)
• Cosmetics Ingredients Functions: ANTIOXIDANT
• InChI: InChI=1S/C14H6N2O8.Na.H/c17-10-4-2-6(14(23)24)15-8(4)7-3(12(19)20)1-5(13(21)22)16-9(7)11(10)18;;/h1-2,15H,(H,19,20)(H,21,22)(H,23,24)
• InChIKey: UFVBOGYDCJNLPM-UHFFFAOYSA-L
• SMILES: C(C1C=C(C(=O)O)N=C2C(=O)C(=O)C3C=C(C(=O)O)NC=3C=12)(=O)O.[NaH]

Description and Uses

Pyrroloquinoline quinone disodium salt (PQQ-NA2) is a water-soluble quinone compound that has a strong antioxidant capacity. This product is a reddish-brown colored powder. It is isolated from cultures of methylotrophic bacteria and tissues of mammals. This essential nutrient is vital for mammals, playing a crucial role in enhancing immune function.

Pyrroloquinoline quinone disodium salt (PQQ), as a prototypical oxidoreductase auxiliary group, exhibits superior aqueous solubility and biocompatibility. Beyond its application as a novel food ingredient, PQQ holds promise for use in battery technology. Research has reported an efficient phenanthrazine-expanding strategy based on a diamine-dicarbonyl cyclisation reaction, extending the aromatic fusion ring system of PQQ to yield two water-soluble, redox-active n-heterocyclic compounds: PQQPS and PQQPC. Following the expansion of the π-conjugated structure, their redox potentials exhibited favourable negative shifts exceeding 330 mV. This significantly enhanced the specific capacity (22.63 Ah L⁻¹) and power output (0.205 W cm⁻²) of aqueous organic redox flow batteries (aORFB), with a capacity retention rate of 97.5% after over 800 cycles (i.e., 99.996% cycle⁻¹ or 99.85% day⁻¹).
[1] GUOCHUN DING. π-Conjugation extended phenazinization of natural prosthetic group pyrroloquinoline quinone disodium salt for long-lifespan biomimetic aqueous redox flow batteries[J]. Nano Energy, 2025, 144: Article 111404. DOI:10.1016/j.nanoen.2025.111404.

Safety

• PPE: Eyeshields, Gloves, type N95 (US)
• WGK Germany: 3
• RTECS: UY9454762
• F: 10-21
• Storage Class: 11 - Combustible Solids