Description: Color group: blue. Inorganic, high-purity pigment. Insoluble, but miscible in water & oils. CAS: 57455-37-5 INCI Name: (CI 77007) Ultramarine blue Properties: Provides superior color purity & saturation, outstanding dispersibility, no aggregate formation. Use: Can be tinted with titanium dioxide to create different blue shades. External use only. Applications: All kinds of color cosmetics (in the US prohibited for lip care products), personal care products, soaps.