3,3'-Dihydroxy-beta,beta-carotene-4,4'-dione

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1 Kilogram	FOB Price: USD 1.0000

1 Kilogram

FOB Price: USD 1.0000

3,3'-Dihydroxy-beta,beta-carotene-4,4'-dione Astaxanthin CAS: 472-61-7

Assay by HPLC

Natural : 2% 2.5% 3%by HPLC

2% 2.5% 3% by UV

Synthetic: 2% 2.5% 3% 3.5% 4% 5% by HPLC

2% 2.5% 3% 3.5% 4% 5% by UV

Astaxanthin Oil: 5% 8% 10% by HPLC

5% 8% 10% by UV

CAS

472-61-7

Molecular Structure

Appearance	Dark Red Powder Dark Red liquid oil
Extract Solvent	Ethanol & water
Moisture and Volatile compounds	≦6.0% ≦5.0% ≦2.0%
Ash content	≦5.0% ≦5.0% ≦2.0%
Residual Solvent	Ethanol<3000ppm
Total Heavy Metals	≤10ppm
As	≤1ppm
Pb	≤1ppm
Hg	≤0.1ppm
Cd	≤1ppm
Total Plate Count	≤1000cfu/g
Total Yeast & Mold	≤100cfu/g