Description
COA-BACKED NUTRITIONAL INGREDIENT
Astaxanthin for B2B Fortification
Astaxanthin is supplied for B2B fortification and premix projects. Specification centres on the declared potency, the carrier system and the stability behaviour in your finished format.
COA-Backed Specification
| Identity | Astaxanthin |
|---|---|
| CAS No. | 472-61-7 |
| Form and colour | Fine dark-red to purple-red powder |
| Assay | 5.0% |
| 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 | LXXQS260307 |
| Manufacture date | 7 Mar 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Vitamin grades are specified by potency, carrier and purity, and the same vitamin name can cover several physical forms. Confirm the exact form and the analytical method before comparing quotations; overage and stability requirements are project-specific.
- Confirm the exact physical form and carrier
- Check declared potency and the assay method
- Review stability and overage needs for your format
- Confirm light, heat and oxygen sensitivity in handling
How This Grade Differs
Astaxanthin must be compared on physical form, carrier and declared potency rather than on the vitamin name alone. Powder, oil, crystal and diluted forms behave differently in blending, dosing and shelf life.
Compare these related grades before approval:
For a substitution review, compare astaxanthin identity, the stated 5.0% HPLC assay, powder form and the current offered-batch COA.
Application Areas
- Vitamin premixes and dry blends
- Tablets, capsules and softgels
- Functional beverages and fortified foods
- Private-label nutrition projects
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 LXXQS260307 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
How long can we hold stock before use?
Two years when stored properly from the manufacture date when the pack stays sealed and dry.
Which test method should our QC lab expect to reproduce?
HPLC, with the reference standard and calculation basis recorded on the batch certificate.
What do you declare for moisture and ash?
Both are released against the limits on the approved specification; the measured result for your lot appears on its COA.
What physical form does Astaxanthin Powder 5% ship in?
Fine dark-red to purple-red powder, milled to 98% through 80 mesh.
How do you control related substances?
Related substances are integrated on the same HPLC run used for the 5.0% assay.
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.
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.
Which documents come with the shipment?
Batch COA, specification sheet, agreed third-party testing where required, commercial invoice, packing list, certificate of origin and transport documents. The exact set is confirmed against the product and destination market.
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
