A fluorogenic standard useful for quantitating assays monitoring amido-4-methylcoumarin (AMC) release. These include ubiquitin-AMC, SUMO-1-AMC, NEDD8-AMC, ISG15-AMC and proteasome substrates. The concentration of the AMC released can be calculated from a standard curve prepared with AMC standards. - Chemical. CAS: 26093-31-2. Formula: C10H9NO2. MW: 175.2. A fluorogenic standard useful for quantitating assays monitoring amido-4-methylcoumarin (AMC) release. These include ubiquitin-AMC, SUMO-1-AMC, NEDD8-AMC, ISG15-AMC and proteasome substrates. The concentration of the AMC released can be calculated from a standard curve prepared with AMC standards.