Uses: Skin-lightening agent

Specification: IP/BP/EP/USP

CAS No: 497-76-7

Product Specifications:

Appearance:- White crystalline powder.

Color and clarity of Solution:-Transparency and colorless.

pH value(in 1% solution):- 5.0 ~ 7.0

Specific rotation[a]D:- +179±5°

Melting point:-202 ⁰C ~ 212 ⁰C

Infrared characteristic peak value:1515cm-1 1220cm-1 1050cm-1 ±(5?8)cm-1

Loss on drying:- NMT 0.5%

Residue on Ignition:- NMT 0.5%

Heavy metals (Pb):- NMT 10ppm

Arsenic:- NMT  2ppm

Mercury:-NMT 1ppm

Hydroquinone:-NMT 10ppm

Assay:- NLT 99.5%

Aerobic bacterial count:-NMT 300/g

·        Yeast count: NMT 100/g

·        Fecal Coliforms: Negative

·        Staphylococcus Aureus:Negative

Identification:- HPLC IR