CERTIFICATE OF QUALITY

Product:

Vitamin K₂(20)

Menaquinon-4; 2-Methyl-3-[(2E,6E,10E)-3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl]-1,4-naphthalenedione

Lot:

OE3108A

Code:

185834

CAS NO.:

[863-61-6]

Mol. Formula:

C₃₁H₄₀O₂

Mol. Weight:

444.65

Packing:

1 Kg / Bottle

Assay

98.0%~102.0%

98.6%

Solubility

Freely soluble in ethanol isopropanol,slightly soluble in methanol,insoluble in water

Complies

Clarity in Hexane

Clear and Yellow

Complies

Identification

-Ethanol+Potassium Hydroxide

-Ethanol+Sodium Hydrosulfite

-Absorption in Isooctane

-Absorbance Ratio A1/A2

Blue

Yellow

325nm~327nm

0.32-0.38

Complies

Complies

Complies

0.36

Melting Point

33-44¡æ

36¡æ

Heavy Metals

< 20ppm

Complies

Arsenic

< 2ppm

Complies

Water

< 0.5%

Complies

Residue On Ignition

< 0.1%

Complies

Other Related Substances ratio

0.010

Complies

Appearance

Yellow, Odorless and Tasteless Crystals/Oily substance

Yellow crystals powder