A phosphoryl donor in protein synthesis and signal transduction Assay: ≥95% λmax: 252 nm ± 1 nm εmax: (13.7 ± 0.7) x 103 A250/A260: 1.15 ± 0.03 A280/A260: 0.65 ± 0.03 Moisture (KF): ≥10.0% Appearance: Solid …