p-Nitrobenzyl mesylate, Alkylation reagent(AB138910)

MW 231.23 Da, Purity >98%. An alkylation reagent to be used with ab92570 rabbit monoclonal anti-thiophosphate ester antibody and ab138911 ATP-gamma-S for the identification of direct kinase substrates. Prepare a 50 mM PNBM (12 mg/ml) stock by dissolving PNBM in DMSO and vortexing. One time use DMSO aliquots may be stored at -20°C.