... 3 Molecular Weight: 326.43CAS No.: 1843-05-6 Appearance:Light yellow crystallian powderMelting point(°c):47.0-49.0Content(%):99 ... -performance anti-aging additive can absorb 240-340 nanometer UV light,with light color,non-toxic,good compatibility,mobility,easy processing characteristics.It ... -drying paint,powder coating,polyurethane,rubber etc.,to provide them with good light stability effect.