"Z(OMe)-Ser(Bzl)-Lys(Z)-Tyr-Arg(Tos)-OH" is a peptide sequence consisting of five amino acids: N-benzyloxycarbonyl-protected serine (Ser(Bzl)), N-methoxycarbonyl-protected serine (Z(OMe)), N-benzyloxycarbonyl-protected lysine (Lys(Z)), tyrosine (Tyr), and N-tosyl-protected arginine (Arg(Tos)). This specific arrangement of amino acids is designed to protect certain functional groups during peptide synthesis, which is crucial for maintaining the stability and reactivity of the peptide. The benzyl (Bzl) and tosyl (Tos) groups are commonly used protecting groups in peptide chemistry, while the methoxycarbonyl (Z(OMe)) group is a variant of the carbobenzyloxy (Cbz) protecting group. The sequence is terminated with a hydroxyl group (-OH), indicating the presence of a free carboxyl group at the C-terminus, which is essential for further peptide bond formation or other chemical modifications. This peptide sequence is a synthetic construct that can be used in various biological and medicinal applications, such as drug development or the study of protein-protein interactions.
The CAS Registry Mumber 97186-16-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,1,8 and 6 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 97186-16: (7*9)+(6*7)+(5*1)+(4*8)+(3*6)+(2*1)+(1*6)=168 168 % 10 = 8 So 97186-16-8 is a valid CAS Registry Number.