CAS Number
860-22-0
Formula
C20H10Na2O5
Weight
466.35
Acid Blue 74; 5,5'-Indigodisulfonic acid, disodium salt
| Potency | >2000 mg/kg LD50, oral (Rat) |
| Composition | dye content, ≥80% spectrophotometric assay |
| Loss | ≤10% loss on drying, 110°C |
| pH | 7 (20°C, 10 g/L in H2O) |
| Solubility | 1 g/L |
| Bulk Density | 700‑900 kg/m3 |
| λmax | 608-612 nm in water |
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