Guanosine-5'-Triphosphate (GTP), Disodium Salt

Appearance: White crystalline powder
CAS Number: [56001-37-7]
Melting Point: 180°C
Molecular Formula: C₁₀H₁₄N₅O₁₄P₃Na₂
Molecular Weight: 567.15
Storage Conditions: Store in tightly closed containers.
Storage Temperature: -20°C
Assay:GTP·Na₂: >=96.0% (dry basis, UV)
GTP: >=95.0% (HPLC)
GTP: >=76.0% (enzymatic)
GMP&GDP: <=5.0% (HPLC)
λ_max: 252nm
ε_max: 13,700nm ± 4 % (pH 7)
Absorbance Ratios:A₂₅₀/A₂₆₀: 1.12 to 1.18; A₂₈₀/A₂₆₀: 0.63 to 0.69
Moisture (KF): <=10.0%

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