2-Hydroxy-4-methoxy benzophenone Benzophenone-3 UV-9
2-Hydroxy-4-methoxy benzophenone
Benzophenone-3
UV-9
Item |
Unit |
Specification |
Appearance: |
|
Yellowish crystal powder |
Purity: |
% |
≥99.0 |
Melting Point: |
℃ |
63-65 |
Loss on drying: |
% |
≤0.5 |
Residue on ignition: |
% |
≤0.1 |
Heavy metal (Pb): |
ppm |
≤5 |
Total bacteria: |
cfu/g |
≤300 |
Mildew: |
cfu/g |
≤100 |
UV absorbance E1% 1cm, in Methanol at λ max.288nm: |
|
≥630 |
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