PAP-AMC 1MG. PAP-AMC, A tyrosinase substrate, Molecular Formula: C17H14N2O4, Molecular Weight: 310. 3, Purity: greater than or equal to 98% by HPLC, Appearance: Off-white solid, Storage: Conditions -20 deg C, Synonym: 1-(4-Methyl-coumarin-7-yl)-3-(4-hydroxyphenyl)urea, Size: 1MG