Z-Tyr-Aca-PHA, also known as Z-Tyr-Aca-L-phenylalanine-7-amido-4-methylcoumarin (Z-Tyr-Aca-AMC), is a synthetic peptide substrate commonly used in enzyme assays, particularly for proteases such as cathepsin B and legumain. The compound consists of a Z-protected tyrosine residue, an acetylated alanine residue, a phenylalanine residue, and a 7-amido-4-methylcoumarin (AMC) fluorophore. When the protease cleaves the peptide bond between the phenylalanine and the AMC, the AMC is released, and its fluorescence is detected, allowing for the quantification of enzyme activity. This substrate is widely used in research to study the function and regulation of proteases, as well as in drug discovery efforts targeting these enzymes.
The CAS Registry Mumber 95015-74-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,0,1 and 5 respectively; the second part has 2 digits, 7 and 4 respectively. Calculate Digit Verification of CAS Registry Number 95015-74: (7*9)+(6*5)+(5*0)+(4*1)+(3*5)+(2*7)+(1*4)=130 130 % 10 = 0 So 95015-74-0 is a valid CAS Registry Number.