CAS NO: 83524 Molecular Formula: C40H26N2O6 Molecular Weight: 630.64 Appearance: black powder with green light Color Light: close to - micro level (compared with standard sample) Tinting Power: 100±5% (compared with standard sample) Moisture: <0.5% Water Soluble Salts: <0.5% Oil Absorption: 35 ± 5 Fineness (80 mesh Sieve Residue): <5% Packing: metal pail lined with plastic bag Net Weight: 25 kg/pail, 50 kg/pail Use: paint, coating and printing ink dyeing