Formula Weight:
507.18 (for free acid)
605.19 (ATP.Na2.3H2O)

Formula: C₁₀H₁₄N₅O₁₃P₃.Na₂

UV Spectral Analysis: Ratios at pH 7.5
A₃₄₀/A₂₆₀ (0.80 ± 0.03)
A₂₈₀/A₂₆₀ (0.15 ± 0.02)
ε at 260 nm (15.4 ± 0.5) x 10³

Purity: ≧ 95% when determined by enzymatic analysis with glucose-6-phosphate dehydrogenase and hexokinase coupling system at pH 7.5
*Hexokinase (EC 2.7.1.1.)
*Glucose-6-phosphate dehydrogenase (EC 1.1.1.49.)

Sodium Content: 9.0 ± 2.0% by atomic absorption spectrophotometry

Water Content: < 12% by Karl Fischer

Contaminants: AMP + ADP < 1.0%

Condition for Storage:
Keep tightly stoppered in the dark below 5°C.
For Prolonged storage, keep below -20°C.
ADP-Solution is stable over a broad range of pH 2-13.

Shipping Condition: Refrigerate