Formula: C₄₀H₃₂Cl₂N₈O₂ (Diformazan precursor) CAS: 298-95-3 EC No.: 206-066-9 M (Molar Mass): 719.65 g/mol D (Density): ~1.0 g/cm³ (approx.) mp (Melting Point): 190-195 °C (dec.) bp (Boiling Point): Not applicable Optical Rotation: Not applicable

Assay (HPLC/UV): ≥ 95.0 % Appearance: Pale yellow to tan powder. Identification (Reduction Test): In the presence of a reducing agent (e.g., sodium dithionite) or dehydrogenase activity, is reduced to a blue-purple insoluble formazan. Solubility (in Water): Slightly soluble, can be dissolved in warm water or saline. Loss on Drying: ≤ 5.0 % Suitability for Histochemistry/Enzymology: Complies with test for dehydrogenase localization.