| Description | Vat Blue 2, a indigo derivative, is a dark blue 5,5'-dibromo-4,4'-dichloroindigo dye. |
| In vitro | Indigo is the parent compound for a series of bromine and chlorine-substituted dyestuffs. Vat Blue 2 has four substituents, two each of chlorine and bromine, but located at different positions[1]. |
| molecular weight | 488.94 |
| Molecular formula | C16H6Br2Cl2N2O2 |
| CAS | 29245-44-1 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| References | 1. Judy D. Timpa, et al. The Flammability of Cotton Fabrics Dyed with Indigo Dyes. |