Formula Weight: 663.43

Formula: C₂₁H₂₇N₇O₁₄P₂

UV Spectral Analysis:
Ratios at pH 7.5
A₂₅₀/A₂₆₀ (0.83 ± 0.03)
A₂₈₀/A₂₆₀ (0.21 ± 0.02)
ε at 260 nm (18.0 ± 0.5) x 10³
Ratios at pH 10 after reduction with ADH*
A₃₄₀/A₂₆₀ (0.43 ± 0.01)
ε at 340 nm (6.3 ± 0.2) x 10³

Purity: ≧ 95% when determined by enzymatic analysis with alcohol dehydrogenase* at pH 10
*ADH = Alcohol dehydrogenase (yeast)(EC 1.1.1.1.)

Water Content: < 8% by Karl Fischer

Condition for Storage:
Keep tightly stoppered in the dark below 5°C.
Moisture will reduce the purity.
For prolonged storage, keep below -20° C.

Shipping condition: Refrigerate