PRODUCT SPECIFICATION
| TEST | SPECIFICATION |
| Appearance (Form) | Powder |
| Appearance (Color) | Dark green |
| Solubility in water (0.1%) | Clear red solution |
| Dye Content (Spectrophotometric) | > 80% |
| Maximum Absorption in water at γmax | 552-557 nm |
| Absorptivity (A1% / 1cm in 50% Ethanol at 560.0 γmax) | > 950 |
| Loss on drying (110°C) (1 hrs) | 5 % Max |




