Description
COA-BACKED NUTRITIONAL INGREDIENT
Vitamin K2 (MK-7) for B2B Fortification
Vitamin K2 (MK-7) 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 | Vitamin K2 (MK-7) |
|---|---|
| CAS No. | 2124-57-4 |
| Form and colour | Fine off-white to pale-yellow powder |
| Assay | 1.0% |
| 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 | LXKM260403 |
| Manufacture date | 3 Apr 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
Vitamin K2 (MK-7) 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 the MK-7 form of vitamin K2, the 1.0% HPLC assay, powder formulation and the current offered-batch COA. MK-4 is a separate specification.
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 LXKM260403 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 purity window can you hold batch to batch?
1.0%, verified by HPLC on every lot.
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 batch is the quotation based on?
The page cites representative batch LXKM260403; the current lot’s certificate governs release.
Which test method should our QC lab expect to reproduce?
HPLC, with the reference standard and calculation basis recorded on the batch certificate.
What physical form does Vitamin K2 (MK-7) Powder 1.0% ship in?
Fine off-white to pale-yellow powder, milled to 98% through 80 mesh.
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.
What is the usual lead time?
Regular production normally takes 7-15 working days after deposit, depending on stock, volume, testing and customisation requirements.
What packing options are available?
Standard packing is a sealed food-grade inner liner inside an export carton or fibre drum. Pack size, labelling and private-label artwork are agreed in the 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
