Vitamin K2 MK4|SALUS NUTRA INC|SALUS NUTRA INC,one of the leading natural products supplier in China,we are spcialized in Herb extract,our products passed and obtained the certificates of ISO9001:2000 , HACCP, SC production license, business license for the health food, and enterprise records of food export and production

Menatetrenone (INN), also known as MK-4, is one of the nine forms of vitamin K2.

MK-4 is produced via conversion of vitamin K1 in the body, in the testes, pancreas and arterial walls.

Specification

ITEM	SPECIFICATION
Appearance	Yellow powder
MK-4 (HPLC), %	≥98 To relative Rf value 1.1 regarding to the principal
Cis-isomer	spot from the sample solution is not more intense than the spot from the standard solution
Solubility	Easily soluble in n-hexane, soluble in ethanol, slightly soluble in methanol, almost insoluble in water
Condition	No offensive taste and smell
Clarity in Hexane	Clear and Yellow
Absorption in isooctane	325nm-327nm
Absorbance Ratio A1/A2	0.32-0.38
Melting Point(℃)	≥35.0 ℃
Arsenic, ppm	≤2
Lead, ppm	≤2
Mercury, ppm	≤0.2
Cadmium, ppm	≤0.3
Water, %	≤0.5
Residue on Ignition, %	≤0.1
Colonies Number, CFU/g	≤1000
Salmonella SP.	0/25g
Staphylococcus	0/25g
E. Coli, MPN/g	0/25g
Ethanol,%	≤0.5
Acetone,%	≤0.5