Formula: C₂₁H₂₇N₇NaO₁₇P₃ (Tetrasodium salt common) CAS: 1184-16-3 (tetrasodium) EC No.: 214-668-9 M (Molar Mass): 833.35 g/mol (tetrasodium) D (Density): ~1.0 g/cm³ (approx.) mp (Melting Point): Decomposes bp (Boiling Point): Not applicable Extinction Coefficient: ε₂₆₀ nm ≈ 18,000 M⁻¹cm⁻¹ (pH 7)

Assay (Enzymatic/UV): ≥ 95.0 % (NADP⁺) Appearance: White to off-white lyophilized powder. Identification (UV): Passes test (A₂₆₀/A₂₈₀ ≈ 2.3-2.5). Purity (A₂₆₀/A₂₈₀): ≥ 2.2 Solubility (in Water): Clear, colorless solution. Water (Karl Fischer): ≤ 5.0 % Enzymatic Activity: Suitable for use in G6PDH-coupled assays.