Molecular Weight: 548.62Salt Form: N/APurity: >95%Sequence (3-letter): Suc-Leu-Tyr-MbNASequence (1-letter): Suc-LY-MbNAStorage: -20 °C or belowSuc-Leu-Tyr-4-methoxy-2-naphthylamide is a fluorogenic substrate for Calpain I & II and papain.Activity is quantified by release of free fluorescent 4-Methoxy-β-naphthylamine (4MβNA) which excites at 335-350 nm and emits at 410-440 nm.