| Chemistry name: | disodium 2-(4′-sulfamylphenylazo)-7-acetamido-1-hydroxynaphthalene-3,6-disulfonate |
| M Formula: | C18H14N4Na2O10S3 |
| Properties: | |
| Dark red powder; odorless; tasteless. Soluble in water with an intense red color; practically insoluble in organic solvents. | |
| Use: | |
| Medicine (antibacterial). | |