| Customization: | Available |
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| Powder: | Yes |
| Customized: | Customized |
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Vitamin K is natural and synthetic. The natural fat-soluble vitamin K1 in alfalfa and spinach is called vitamin K1; the vitamin K2 synthesized by the bacteria in the gut of animals is called vitamin K2; the artificial one is water-soluble, namely, vitamin K3, vitamin K4 and vitamin K5.
| Product Name | vitamin K2 MK4 Powder |
| Appearance | yellow powder |
| CAS | 863-61-6 |
| Molecular Formula | C31H40O2 |
| Molecular Weight | 444.6481 |
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