Description
HIGH-PURITY SPECIALTY INGREDIENT
alpha-Ketoglutaric acid
alpha-Ketoglutaric acid is supplied as a high-purity B2B raw material at 99.0%. This grade is produced to a declared purity with controlled identity, residual solvents and heavy metals, and is released against a batch-specific COA. It is intended for further processing by the buyer or for use as a reference material in development work; it is not a finished consumer product.
COA-Backed Specification
| Identity | alpha-Ketoglutaric acid |
|---|---|
| Form and colour | Fine white crystalline powder |
| Assay | 99.0% |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0% |
| Ash | <=5.0% |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXGZ260423 |
| Manufacture date | 23 Apr 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Buyers approving alpha-Ketoglutaric acid 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
alpha-Ketoglutaric acid 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 LXGZ260423 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
Which impurity limits are declared?
Moisture and ash are held within the approved specification limits, with heavy metals and microbiology tested on every lot.
What physical form does alpha-Ketoglutaric Acid Powder 99% ship in?
Fine white crystalline powder, milled to 98% through 80 mesh.
How should the material be stored after arrival?
Two years when stored properly. Keep the pack sealed; moisture uptake is the main risk for this grade.
Which test method should our QC lab expect to reproduce?
HPLC, with the reference standard and calculation basis recorded on the batch certificate.
Which batch is the quotation based on?
The page cites representative batch LXGZ260423; the current lot’s certificate governs release.
Can I review the COA before I pay?
Yes. Request the current or representative COA and check identity, method, limits and results before approving the 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.
Can you produce to our own specification or packing?
Alternative assay targets, particle size, packing and private-label requirements are 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.
Get the current batch COA, a sample or a quotation
