What is Pyrroloquinoline Quinone(PQQ)?
Pyrroloquinoline quinone (PQQ), also known as Methoxy Platinum, is a redox cofactor. It exists in the soil, kiwifruit, foods, and human breast milk. Directly speaking, the word “pyrroloquinoline quinone” is a little bit awkward, so most people prefer to use the abbreviation PQQ. The scientific journal Nature published a paper by Kasahara and Kato in 2003, which considered PQQ is a new vitamin. However, after further about pyrroloquinoline quinone research, the researchers determined that although it has some vitamin-like properties, it is only a related nutrient. PQQ can be used as a cofactor or enzymatic promoter in the redox process.
Forms of Pyrroloquinoline Quinone
In today’s supplement market, Pyrroloquinoline Quinone or PQQ mainly exists in two types. One is pyrroloquinoline quinone disodium salt, and the other is pyrroloquinoline quinone acid. Which is more popular and which is better? Let’s have a look at them.
Pyrroloquinoline Quinone Disodium Salt VS Pyrroloquinoline Quinone Acid
Both PQQ salt and acid are in powder form with 99% pure, but with different CAS numbers, molecular formulas and weights.
| PQQ Disodium Salt | PQQ Acid | |
| CAS number | 122628-50-6 | 72909-34-3 |
| Molecular Weight | 374.17 | 330.21 |
| Molecular Formula | C14H4N2Na2O8 | C14H6N2O8 |
| Specifications | 99% | 99% |
Chemically speaking, Pyrroloquinoline Quinone Disodium Salt is a more stable PQQ form and is more popular among supplement brands and nutritional contract manufacturers. More than 80% of supplement products on the market use PQQ disodium salt. If you are considering trying PQQ in your supplement formulas, we strongly recommend the disodium salt form.
Pyrroloquinoline Quinone food sources
PQQ naturally exists in most vegetable foods, fruits, and vegetables (trace), and relatively high levels of PQQ can be detected in fermented soybean products, such as kiwifruit, lychee, green beans, tofu, rapeseed, mustard, green tea (camellia), green pepper, spinach, etc.
Where to buy high-quality Pyrroloquinoline quinone PQQ?
Pyrroloquinoline quinone bulk powder in the form of Pyrroloquinoline quinone disodium salt is available from Cima Science Co., Ltd. Cima has a regular stock of 25 kg/drum of PQQ disodium salt 99% each month for the market of the United States and Europe. Certificate of analysis (COA), MSDS, specification sheet, and pricing quotation are obtainable upon your request.
