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Product | Vitamin K2 MK-4 |
Spec | 98% |
Cas No. | 863-61-6 |
MOQ | 100G |
Appearance | Yellow powder |
Test | Specification | Results |
Assay(Dry basis) | ≥98.0% | 98.05% |
Cis-isomer | TLC: the spot corresponding to relative Rf value 1.1 regarding to the principal spot from the sample solution is not more intense than the spot from the standard solution. | Complies |
Solubility | Easily soluble in n-hexane, soluble in ethanol, slightly soluble in methanol, almost insoluble in water | Complies |
Clarity in Hexane | Clear and Yellow | Complies |
-Ethanol+Potassium Hydroxide | Blue | Complies |
-Ethanol+Sodium Hydrosulfite | Yellow | Complies |
-Absorption in Isooctane | 325nm~327nm | Complies |
-Absorbance Ratio A1/A2 | 0.32-0.38 | 0.34 |
Melting Point | ≥35.0℃ | 37.0℃ |
Heavy Metals | ≤ 20ppm | < 20ppm |
Arsenic | < 2ppm | < 2ppm |
Menadione | Not appear royal purple | Not appear royal purple |
Water | ≤ 0.5% | 0.46% |
Residue On Ignition | ≤ 0.10% | 0.07% |
Ethanol | ≤ 0.3% | 0.23% |
Other Related Substances ratio | 0.01% | Complies |
Appearance | Yellow crystals powder | Yellow crystals powder |
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