Item

Specification

Results

Assay (Anhydrous basis)

98.0%-101.0%

99.6%

Decription

Yellow-orange crystalline powder

Visual

Solubility

Soluble in ether;trichlorotethane
and acetone;very slightly soluble indehydrated alcohol;practically insoluble in water

USP<1171>

IR

Sample spectrum consistent with the spectrum for USP Reference Standard

USP<197K>

Color reaction

A blue color appears

USP<197K>

Tapped Density

0.40g/ml~0.60g/ml

USP<616> I

Water(KF)

≤0.2%

USP<921> IC

Residue on Ignition

≤0.1%

USP<281>

Chromatographic Purity Coenzymes Q7,Q8,Q9,Q11 and related impurities

≤1.0%

USP<621>

Ubidecarenone(2Z)-isomer and related impurities

≤0.5%

USP<621>

Total impurities

Total 1&2≤1.5%

USP<621>

Residual Solvents

Methanol

≤3000ppm

USP<467>

n-Hexane

≤20ppm

USP<467>

Ethanol

≤1000ppm

USP<467>

Isopropyl ether

≤300 ppm

USP<467>

Heavy Metals

Heavy Metal

<10ppm

USP<2232>

As

<1ppm

USP<2232>

Cd

≤0.5ppm

USP<2232>

Pb

≤ 0.5ppm

USP<2232>

Hg

≤ 0.1ppm

USP<2232>

Microbial limit test

Total Aerobic Microbial

<1000cfu/g

USP<2021>

Yeast&Mold Count

<50cfu/g

USP<2021>

E.Coli

Absent/10g

USP<2022>

Salmonella

Avsent/25g

USP<2022>