1) Name: Indigo Blue Granulate 2) C.I.Vat Blue 1 3) CAS No.: 482-89-3 4) Strength: 94% min 5) Usage: Ink/ Paint/ Leather 2) Chemical formula: C16H10N2O2 3) Usage: Mainly used in Offset Ink, Water base Ink , Paint / Leather dyestuff