1.beta arbutin CAS:497-76-7
Capability : 5000MT/year
Assay:99.89%
|
Test |
Specification |
Results |
|
Appearance |
White needle crystal or powder |
White powder |
|
Melting Point |
199-201 |
199.5-201.5 |
|
Clarity of water solution |
Transparency colorless, none
suspended matters |
Complies |
|
PH Value of 1% Aqueous Solution |
5.0-7.0 |
6.30 |
|
Specific Optical Rotation |
[a]20 -65.00 |
-65.1 |
|
Heavy Metals |
10PPM max |
5PPM |
|
Infrared peak value |
requires |
Complies |
|
Arsenic |
2PPM max |
0PPM |
|
Hydroquinone |
negative |
Negative.0ppm |
|
Loss on Drying |
0.5% max |
0.16% |
|
Residue on Ignition |
0.5% max |
0.35% |
|
Bacteria count |
Bacteria 300cpu max |
101 |
|
Fungus 100cpu max |
29 |
|
Assay(HPLC) |
99.5% min |
99.95% |
2.alpha arbutin cas 84380-01-8
Capability : 1500MT/year
Assay: 99% by HPLC
|
Item |
Specification |
Results |
|
Appearance |
White crystalline powder |
White crystalline |
|
Assay |
99.0%Min |
99.90% |
|
Melting point |
203-206degree |
204.6-205.8 |
|
Clarity of water solution |
Transpency, colorless, none suspended matters |
Pass |
|
pH value of 1% aqueous solution |
5.0-7.0 |
6.05 |
|
Specific optical ratation |
D20=+176~184degree |
+179.5 |
|
Arsenic |
2 ppm max |
pass |
|
Hydroquinone |
10 ppm max |
pass |
|
Heavy metal |
10 ppm max |
pass |
|
Loss on drying |
0.5% max |
0.05% |
|
Ignition residue |
0.5% max |
0.04% |
|
Pathogen |
Bacteria:300cfu/g max
Fungus:100cfu/g max |
20
20 |
|
Conclusion |
|
pass |
3.Deoxyarbutin cas 53936-56-4
Performance: deoxy arbutin as a competitive inhibitor of tyrosinase, to regulate melanin production, to overcome the pigmentation faded, dark-spots, with rapid and long-lasting skin beauty Deoxy-arbutin on tyrosinase inhibition activity significantly better than other whitening agents, very little use to show Brightening whitening effect.
Uses: As a new generation of cosmetics Lipstick deoxy arbutin whitening active agent, primarily for advanced whitening cosmetics.
Mechanism: As a professional manufacturer of deoxy arbutin, we deoxy arbutin arbutin physiological activity and mechanism of action of oxygen has been studied in detail, and will be deoxy arbutin With continuous research and reports, please refer to the specific circumstances of the dynamic development of arbutin on the oxygen-related reports.
Safety performance: The active agent for a variety of whitening comparison tests showed that deoxy-arbutin has the lowest toxicity, and deoxy-arbutin skin dilute reversible, is considered Very safe cosmetic whitening active agent.。 Specific studies and test results, please refer to related research reported deoxy arbutin.
Quality standard: Content ≥ 98% oxygen Arbutin
Package store: aluminum foil bag, lined with plastic bag vacuum bag, 1 kg. Deoxy arbutin easily oxidized, please seal storage.
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