Description
HIGH-PURITY SPECIALTY INGREDIENT
PQQ Disodium Salt (Pyrroloquinoline quinone disodium salt)
PQQ disodium salt (pyrroloquinoline quinone disodium salt) is supplied at 99.0% as a high-purity B2B raw material. It is available from both synthetic and fermentation routes; the route for the offered batch is stated on the COA because the two differ in impurity profile and in the residual solvent picture, which matters for some approval dossiers. Handle protected from light and moisture. This material is not a finished consumer product.
COA-Backed Specification
| Identity | PQQ Disodium Salt (Pyrroloquinoline quinone disodium salt) |
|---|---|
| Form and colour | Fine dark red to brownish-red crystalline powder |
| Assay | 99.0% |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0%; result 3.90% |
| Ash | <=5.0%; result 4.20% |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXGZ260413 |
| Manufacture date | 13 Apr 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Buyers approving PQQ Disodium Salt (Pyrroloquinoline quinone disodium salt) normally agree four points before the first order: the assay method and acceptance range, the identity and isomeric form, the residual solvent limits applicable to the destination market, and the physical form required by the buyer’s process. Confirm these at enquiry stage so the shipment is released to the right specification.
- Assay: 99.0% by HPLC, released batch by batch against the current COA.
- Identity: confirmed by the analytical methods stated in the specification table above.
- Residual solvents and heavy metals: reported per batch and reviewed against the destination market’s limits.
- Physical form: powder as standard; packaging and particle size agreed against the buyer’s process.
- Documentation: COA, specification sheet and safety data sheet accompany each shipment.
- Regulatory status, permitted uses and labelling requirements are the buyer’s responsibility for the destination market.
How This Grade Differs
PQQ Disodium Salt (Pyrroloquinoline quinone disodium salt) is often quoted alongside materials of the same or a closely related name at a different purity or in a different form. The two are not interchangeable: purity, residual solvent profile and physical form all change the buyer’s processing yield. Compare quotations on the released assay and the reported impurity profile, not on the headline percentage alone.
Compare these related grades before approval:
For a substitution review, compare botanical identity, plant part, assay target, analytical method, physical form and the current offered-batch COA.
Application Areas
- Hard capsules and two-piece capsule filling
- Stick packs and single-serve sachets
- Powder blends and dry mixes
- Beverage and liquid concentrate systems, subject to the buyer’s process validation
Packaging and Delivery
- Evaluation sample typically 10-20 g, subject to stock
- Regular MOQ typically 1 kg
- 1 kg foil bag or 25 kg fibre drum with inner food-grade liner
- Custom packing and private-label options subject to confirmation
- Typical lead time 7-15 working days after deposit
Quality and Documentation
Representative batch LXGZ260413 supports the specification table above. Use the cited record for preliminary comparison and request the offered-lot COA for final technical approval. Batch COA, specification sheet, agreed third-party testing and export documents are available for buyer verification.
Frequently Asked Questions
What specification defines PQQ Disodium Salt Powder 99%?
For PQQ Disodium Salt Powder 99%: 99.0%, tested by HPLC.
Which identity details must remain consistent?
For PQQ Disodium Salt Powder 99%: match PQQ Disodium Salt (Pyrroloquinoline quinone disodium salt) across the quotation, specification and offered-batch COA. The offered grade is 99.0%.
How is batch-specific approval completed?
For PQQ Disodium Salt Powder 99%: the page cites representative batch LXGZ260413. Final approval requires the current lot’s identity, specification results and relevant dates.
What forms part of the technical review?
For PQQ Disodium Salt Powder 99%: do not assess 99.0% in isolation; particle size, moisture or drying data and market-relevant safety limits can also affect acceptance.
Are you a manufacturer or a trading company?
LongBio is Shaanxi Longsheng Biotechnology Co., Ltd., a direct manufacturer of botanical extracts and functional ingredients integrating R&D, production and export support. Factory review can be arranged by video or an on-site visit.
Can I request the current batch COA before ordering?
Yes. Request the applicable current or representative COA and compare product identity, method, limits and results before approving a purchase order.
What is the minimum order quantity?
The regular MOQ is typically 1 kg. An evaluation sample of 10-20 g can usually be arranged before a formal order, subject to stock.
Do you support custom specifications or packing?
Alternative assay targets, particle size, packing and private-label requirements can be reviewed case by case, subject to production feasibility and a revised written specification.
Request COA, Sample or Quotation
Send your target specification, application, order quantity, destination country and required test limits.
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