Appearance:

Yellow crystals or crystalline powder

Identification:

Certified by IR & color reaction

Solubility:

Soluble in n-hexane and ethanol; slightly soluble in methanol; insoluble in water

Melting point:

34.0 °C ~ 38.0 °C

Water:

NMT 0.3% by KF

Heavy metals:

NMT 10 ppm

Arsenic:

NMT 1 ppm

Menadione:

Not detectable by color reaction

Assay (on dry basis):

NLT 98.0% (as C31H40O2) by HPLC

Total plate count::

NMT 1000 cfu/g

Yeast & Mold:

NMT 100 cfu/g

E. Coli:

Negative

Salmonella:

Negative

Staphylococcus Aureus:

Negative