Vitamin K2 (Menaquinone)
Vitamin K2 (menaquinone MK-7, CAS 2124-57-4, and MK-4, CAS 863-61-6), 1,000 ppm to 98%, all-trans, supplied wholesale by Zyntex. For nutritional products, fortified foods and pharmaceuticals. CoA and SDS.
Description
Vitamin K2 Product Overview
Vitamin K2 is a group of menaquinones that differ in the length of their side chain. MK-7 (menaquinone-7) comes from fermentation with Bacillus subtilis natto or by synthesis, and only the all-trans form is biologically relevant. MK-4 (menatetrenone) is mainly synthetic. Both are pale yellow powders or oils, available as pure substances and as diluted powders and oils from 1,000 ppm.
In addition, producers of nutritional products use MK-7 in tablets, capsules and gummies, often together with vitamin D3, under the regulations of each market. Similarly, food producers use cold-water-dispersible grades in fortified foods and drinks. In Japan and some other countries, MK-4 is also a prescription medicine.
Because it is sensitive to light and oxidation, the all-trans content and stability over shelf life are key quality points. For vitamin K1 and K3, see Vitamin K; related ingredients include Nattokinase and Calcitriol.
Key Applications of Vitamin K2
Typical uses include, for example:
🥤 Nutritional Products
MK-7 for tablets, capsules as well as gummies.
🥛 Functional Foods
Water-dispersible grades for fortified products.
💊 Pharmaceuticals
MK-4 for prescription products in some markets.
🔗 Combinations
Combined with vitamin D3 as well as minerals.
Vitamin K2 Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Vitamin K2 (Menaquinone-7 / MK-4) |
| CAS Number | 2124-57-4 (MK-7) / 863-61-6 (MK-4) |
| Concentration | 1000 ppm to 98% (Customizable) |
| Isomer | All-trans (MK-7) |
| Appearance | Fine Pale-Yellow Powder or Oil |
| Solubility | Fat-soluble (CWD versions available) |
| Documents | CoA as well as SDS with every lot |
⚠️ Safety & Handling: Not classified as hazardous under GHS in diluted forms. Avoid contact with eyes. Store in tightly closed, light-resistant containers in a cool place, because light and oxygen degrade vitamin K2. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Frequently Asked Questions
Why does the all-trans content of MK-7 matter?
Because only the all-trans isomer is biologically relevant, specifications control the cis isomer content.
What is the difference between MK-7 and MK-4?
MK-7 has a longer side chain and stays longer in the body, whereas MK-4 is mainly synthetic and used as a medicine in some countries.
How can I get a price and documents?
Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.
