USD $3.00-10.00 / Kilogram
USD $25.00-25.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $25.00-25.00 / Kilogram
USD $25.00-25.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
product name | deoxyarbutin |
synonyms | tetrahydropyranyloxyphenol |
cas | 53936-56-4 |
mf | c11h14o3 |
mw | 194.22706 |
einecs | 1308068-626-2 |
product categories | cosmetics;inhibitors |
test |
specification | result |
appearance | off-white crystalline powder | 0ff-white crystalline |
assay,% | 98.0%min | 99.7% |
melting point | 84~88℃ | 86~87℃ |
clarity of alcohol solution | transparency, colorless, none suspended matters | pass |
arsenic | ≤2 ppm | pass |
heavy metal | ≤10 ppm | pass |
loss on drying | ≤0.5% | pass |
ignition residue | ≤0.5% | pass |
pathogen |
bacteria:≤300cfu/g fungus:≤100 cfu/g |
<20 <20 |
conclusion | pass |