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Natural Arbutin, Melatonin
 Natural Arbutin, Melatonin |
Product Description
Arbutin
CAS#497-76-7
Packing: 25kg/drum
Appearance: White needle crystal or powder
Assay(HPLC): Above 98%
(Melting point)199~201(+-0.5C)
Specific rotation: [a]D20=-65.00+-2.00
Clarity of water solution Trasparancy colorless. None suspended matters
Loss on drying: Below 0.5%
Residue on ignition: Below0.2%
Heavy metals: Below20ppm
(As)Arsenic: Below 2ppm
PH (PH value): 5.0-7.0
Infrared characteristic peak: 1512cm-11219cm-11049cm-1+-(5-7)cm-1
Hydroquinone: Below 20 ppm
Bacteria countbelow 300cpu
Below 100cpu
Melatonin
CAS#608-07-1
Quality standards: FCC
Packaging: 20kg/drum
Characteristic: White crystal or white crystalline powdwer
Assay(TCL): 99%
Loss on drying: 0.5% MAX
Residue on ignition: Above 0.5% MAX
Heavy metal: 20 PPM MAX
| Trademark: | nanjian |
| Productivity: | 5MT/month |
| Unit Price/Payment: | negotiable |
| Company: | Wuhan Yuancheng Technology Development Co., Ltd. |
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