Z-Gln(Mbh)-ONp is a synthetic chemical compound, where "Z" stands for the benzyloxycarbonyl group, a protecting group used in peptide synthesis. "Gln" represents glutamine, an amino acid. "Mbh" is the abbreviation for 4-methylbenzyl, a substituent group. "ONp" denotes 4-nitrophenol, a chromophore used for detection purposes. Z-Gln(Mbh)-ONp is utilized in peptide synthesis and serves as a substrate for enzyme assays, particularly for proteases, due to its ability to change color upon cleavage by the enzyme. The 4-nitrophenol group allows for easy monitoring of the reaction progress, making Z-Gln(Mbh)-ONp a valuable tool in biochemical research and drug development.
The CAS Registry Mumber 28252-59-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,5 and 2 respectively; the second part has 2 digits, 5 and 9 respectively. Calculate Digit Verification of CAS Registry Number 28252-59: (7*2)+(6*8)+(5*2)+(4*5)+(3*2)+(2*5)+(1*9)=117 117 % 10 = 7 So 28252-59-7 is a valid CAS Registry Number.