PRODUCT SPECIFICATION
| TEST | SPECIFICATION |
| Appearance (Form) | Powder |
| Appearance (Color) | Dark Blue |
| Solubility in water | Soluble |
| Maximum Absorption at γ max (nm) | 632 (±5) nm
588 (±5) nm |
| Absorbance (%) | 505 (±10%)
415 (±10%) |
| Volatile Matter at 105°C | 10 % Max |
| Iron | <250ppm |
| HPLC Purity | >98% |
| Heavy Metal | Passes Test |
