D-Biotin

Cas #: 58-85-5

A chemosynthesis product, available in white to off-white crystalline powder, hardly soluble in water and ethanol, nearly insoluble in organic solvents. As an essence nutrient for human body, widely used for dietary supplements and fortified foods, also used for tablet and hard-shell capsule preparation due to its pharmaceutical properties.

Assay 98.5%--101.0%

Specification:
Appearance: White of off-white crystal powder.
Specific rotation: +89dec -- +93dec
Solubility: 2% naoh 0.1%mol/l
Ph value: 3.5-4.5 (0.1% aqueous solution)
Heavy metal(pb): 1.0ppm
All impurity content: <0.25%
Sulphated ash: <0.1%
Loss on drying: <0.1%
D-biotin cotnent: 98.5—101.0%(as dry base).