Skip to Content
Merck
All Photos(1)

Documents

Safety Information

D7783

Sigma-Aldrich

Pyrroloquinoline quinone

≥95.0% (HPLC)

Synonym(s):

4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid, Methoxatin, PQQ

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C14H6N2O8
CAS Number:
Molecular Weight:
330.21
Beilstein:
3596812
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.79

biological source

synthetic

Quality Level

Assay

≥95.0% (HPLC)

form

powder

technique(s)

HPLC: suitable

color

red to deep red

storage temp.

2-8°C

SMILES string

OC(=O)c1cc(C(O)=O)c-2c(n1)C(=O)C(=O)c3cc([nH]c-23)C(O)=O

InChI

1S/C14H6N2O8/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)

InChI key

MMXZSJMASHPLLR-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Pyrroloquinoline Quinone (PQQ), also referred as methoxatin, is a water soluble orthoquinone molecule with redox-cycling ability.
Novel o-quinone coenzyme found in bacterial dehydrogenases and oxidases.

Application

Pyrroloquinoline quinone has been used:
  • as a component of nanocurcumin formulation (NCF), to study its therapeutic effect on ameliorate hypoxia-induced stress in hypertrophied cardiomyocytes
  • as a standard in fluorescence analysis
  • to test its efficiency in suppressing restrained oxidative stress and hepatic fibrogenesis in mouse models

Biochem/physiol Actions

Pyrroloquinoline Quinone (PQQ) plays a vital role in gluconic acid production and biosynthesis by microbes. It acts as an effective microbial growth stimulant and biological control determinant for plant pathogens. PQQ also acts as an anti-melanogenic agent and is used to treat disorders related to hyper pigmentation. It exhibits diverse role in metabolism and cell signaling pathways. PQQ is used as a potential therapeutic to treat liver fibrosis.
PQQ is present in nanomolar quantities in most foods and in most animal tissuse. It promotes growth, mitochondrial function, and development in vivo and stimulates cell proliferation and viability in culture. It is a potent antioxidant that scavenges superoxide and peroxinitrite. It is neuroprotectant against 6-hydroxydopamine-induced and hypoxia/ischemia-induced neurotoxicity. PQQ conjugates to α-synuclein in vitro, inhibiting the formation of amyloid fibrils.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

D7783-5MG:
D7783-BULK:
D7783-1MG:
D7783-10MG:
D7783-VAR:


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

The life history of pyrroloquinoline quinone (PQQ): a versatile molecule with novel impacts on living systems
Naveed M, et al.
Molecular Biology, 1(10), 29-46 (2016)
Crystal structure of PqqB from Pseudomonas putida at 2.2
Metlitzky M, et al.
Journal of biophysical chemistry, 3(02), 206-206 (2012)
Nanocurcumin--pyrroloquinoline formulation prevents hypertrophy--induced pathological damage by relieving mitochondrial stress in cardiomyocytes under hypoxic conditions
Nehra S, et al.
Experimental & Molecular Medicine, 49(12), e404-e404 (2017)
Pyrroloquinoline quinone (PQQ) from methanol dehydrogenase and tryptophan tryptophylquinone (TTQ) from methylamine dehydrogenase.
V L Davidson
Advances in protein chemistry, 58, 95-140 (2001-10-23)
J A Duine
European journal of biochemistry, 200(2), 271-284 (1991-09-01)
The presently best known and largest group of quinoproteins consists of enzymes using the cofactor 2,7,9-tricarboxy-1H-pyrrolo[2,3-f]quinoline- 4,5-dione (PQQ), a compound having a pyrrole ring fused to a quinoline ring with an o-quinone group in it. Representatives of this group are

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service