Brand Fineland Chem Color Index Iron Oxide Blue Product Code DuraPaint®835 CAS No 20344-49-4 /147-14-8/ 471-34-1 EC No 243-746-4 / 205-685-1 / 207-439-9 Chemical Formula FeOOH / C₃₂H₁₆CuN₈ / CaCO₃