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PQQ Pyrroloquinoline quinone

Name: PQQ Pyrroloquinoline quinone
Brand: Maintain
SKU: pr2203222199
Price: 1857.49 USD
Availability: InStock

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Unit Price:

$1857.49/KG EXW

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CAS No.:

72909-34-3

Grade:

Food/Industrial Grade

Content:

99%

Brand:

Maintain

Packaging:

25kg/Cardboard Drum

Price valid (until):

2027-09-21

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Maintain Biotech Co.Ltd

Company Type:

Distributor

Location:

China

Qualification:

Main Products:

NMN,NAD,NR,NADPH,NADP,NADH

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Product Description
Seller Information
Inquiry History

Description

Product Detail

PQQ（吡咯喹啉醌)
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 a water-soluble vitamin (role), a cofactor, an antioxidant and an anti-inflammatory agent. It is a member of orthoquinones, a tricarboxylic acid and a pyrroloquinoline cofactor. It is a conjugate acid of a pyrroloquinoline quinone(3-).

Preferred IUPAC name
Synonym(s):	Methoxatin, PQQ, 4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid
CAS Number	72909-34-3
Chemical formula	C14H6N2O8
Molecular Weight:	330.21
Flash point	569.8 °C (1,057.6 °F; 842.9 K)
color	red to deep red
Format:	Crystalline Solid
Appearance	Orange to Red Solid
Melting Point	222 - 224°C
Storage	‘-20°C Freezer, Under inert atmosphere
Solubility	DMSO (Slightly), Methanol (Slightly)
Stability	Temperature Sensitive
Category	Standards; Enzyme Activators and Inhibitors;
Applications	A cofactor of microbial quinoprotein enzyme, and imidazopyrroline. A redox/cofactor found in a a class of enzymes called quinoproteins.




DESCRIPTION
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.

Certificates

Basic Info

Product Name:

Pyrroloquinoline quinone

Other Name:

PQQ Cofactor, Pyrroloquinoline quinone, 4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid;Pyrroloquinoline quinone,4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid, Methoxatin, PQQ;Pyrroloquinoline quinone ,98%;Coenzime PQQ;Coenzyme PQQ;Methoxatine;4,5-dioxo-1H,4H,5H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid;Pyrroloquinoline quinone 72909-34-3

CAS No.:

72909-34-3

Molecular Formula:

C14H6N2O8

InChIKeys:

MMXZSJMASHPLLR-UHFFFAOYSA-N

Molecular Weight:

330.21

Exact Mass:

330.21

BRN:

3596812

EC Number:

200-001-8

UNII:

47819QGH5L

DSSTox ID:

DTXSID3041162

Color/Form:

Orange to Red

HScode:

29339900

Categories:

Bulk Drug Intermediates

Characteristics

Density:

1.963±0.06 g/cm3(Predicted)

Melting Point:

222 - 224°C

Boiling Point:

1018.6±65.0 °C(Predicted)

PKA:

1.88±0.20(Predicted)

Critical Temperature & Pressure:

2-8°C

See More Pyrroloquinoline quinone Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Skin irritation, Category 2

Eye irritation, Category 2

Specific target organ toxicity â single exposure, Category 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Pyrroloquinoline quinone Safety Data Sheet 

Seller Information

Business Type:
Distributor

Main Products:
NMN,NAD,NR,NADPH,NADP,NADH

Location:
Floor 4,G17,Lianhui Building,No.5 Xinggong village,Sanlian Community,onghua District,Shenzhen,China.

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,100% TT in advance

Average lead Time:
305

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2021

Certifications:
HALAL,FDA,ISO9001

Company Profile
Maintain is focusing on the leading coenzyme industry and produce high value-added coenzymes.Biocatalysis is our main technology . Enzymatic synthesis geting less impurities, highest yield, and 0 chemical solvents，enzymatic synthesis is Green enzyme technology ,no toxic，Aqueous reaction system ,100% water condition. Also bulk storage and fast delivery.
Our main products NAD,NADH NMN and NR are widely used in Dietary Supplements, cosmetic products & Pharmaceutical products.

Maintain is focusing on the leading coenzyme industry and produce high value-added coenzymes.Biocatalysis is our main technology . Enzymatic synthesis geting less impurities, highest yield, and 0 chemical solvents，enzymatic synthesis is Green enzyme technology ,no toxic，Aqueous reaction system ,100% water condition. Also bulk storage and fast delivery.

Our main products NAD,NADH NMN and NR are widely used in Dietary Supplements, cosmetic products & Pharmaceutical products.

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Inquiry History

4 Inquiries

Country	Product	Purchase Quantity	Date Posted
Italy	PQ1	25 G	Dec 12, 2025
Serbia	PQQ Pyrroloquinoline quinone	1 KG	Nov 27, 2025
Pakistan	Pyrroloquinoline quinone	50 KG	Jan 13, 2026
United States	Manufacturer Price 99% Pyrroloquinoline Quinone Disocdium Salt PQQ Powder/ Coenzime PQQ / Methoxatine	1 KG	Aug 30, 2023

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