Z-(OMe)-His(MBS)-ONP is a complex chemical compound that consists of several components. "Z" refers to a benzyloxycarbonyl (Z) protecting group, which is commonly used in peptide synthesis to protect the amino group. "OMe" stands for methoxy, indicating the presence of a methoxy group. "His" represents the amino acid histidine, which is known for its ability to form coordination complexes with metal ions. "MBS" is an abbreviation for 4-Methylbenzenesulfonyl, a protecting group used in the synthesis of histidine derivatives. "ONP" stands for 4-nitrophenyl, which is a chromophore often used in assays to detect the presence of certain enzymes or reactions. Z-(OMe)-His(MBS)-ONP is likely used in biochemical research, particularly in the study of enzyme activity or in the development of affinity labels, due to its combination of a protecting group, a metal-coordinating amino acid, and a detectable chromophore.
The CAS Registry Mumber 74528-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,2 and 8 respectively; the second part has 2 digits, 2 and 0 respectively. Calculate Digit Verification of CAS Registry Number 74528-20: (7*7)+(6*4)+(5*5)+(4*2)+(3*8)+(2*2)+(1*0)=134 134 % 10 = 4 So 74528-20-4 is a valid CAS Registry Number.