3-O-Ethyl-Lascorbic acid is a lipophilic derivative of a water soluble vitamin C, not only in the formulation to be very convenient to use and more easily penetrate it into the dermal layer of the stratum corneum, into the skin easilydecomposed by enzymes play a role of vitamin C, thereby increasing its bioavailability, and ordinary vitamin C is difficult to be absorbed through skin, bioavailability is very low. Moreover, vitamin C ethy ether is relatively common in vitamin C also show high stability.
Test Report:
Item |
Specification |
Result |
Description |
White crystalline powder
|
Conform |
Identification |
IR test
|
Conform |
PH |
7.0~8.0 |
7.4 |
Related substances Liquid chromatography
|
ImpurityA ≤0.1% ImpurityB≤0.2% Any other impurity≤0.1% All other impurity≤0.2% |
<0.1% <0.2% <0.1% <0.2% |
Loss on drying |
≤0.5% |
0.3% |
Residue on ignition |
≤0.1% |
<.08% |
Heavy metals |
≤10ppm |
<10ppm |
Chlorides |
≤14ppm |
<140ppm |
Sulphated ash |
≤0.1% |
<0.1% |
Assay |
99.0%~101.0% |
99.76% |
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