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2-Hydroxy-4-Methoxybenzophenone-5-sulfonic acid UV-284; BP-4CAS NO:4065-45-6Raw material of UV-Absorbant
Item | Standard |
Appearance | White or light yellow powder |
Purity | ≥99.0% |
Specific Extinction | E 285 460 E 325 ≥290 |
PH Value | 1.2-2.2 |
Cloudiness of Solution | 1.5 |
Loss on Drying | 3% |
Residue on Ignition | 0.1% |
Color | 1.0 |
Melting Points | ≥140oC |
Heavy Metals | 5ppm |
2-Hydroxy-4-Methoxybenzophenone-5-sulfonic acid (UV-284)