"Z(OMe)-Thr-Lys(Z)-Asp(OBzl)-Leu-Lys(Z)-NHNH-Troc" represents a peptide sequence, which is a chain of amino acids. In this sequence, each three-letter abbreviation corresponds to a specific amino acid: Z(OMe) stands for O-benzyl-L-tyrosine methyl ester, Thr is threonine, Lys(Z) is lysine with a benzyl protecting group, Asp(OBzl) is aspartic acid with a benzyl protecting group on the hydroxyl group, Leu is leucine, and NHNH-Troc signifies a trityl-protected hydrazine group at the peptide's N-terminus. This particular sequence is of interest in peptide chemistry, potentially for the synthesis of larger proteins or as a component in drug development. The protecting groups (Z, OBzl, and Troc) are temporary chemical modifications that shield certain functional groups during the synthesis process, ensuring that the peptide链 can be constructed without unwanted side reactions. Once the peptide is fully assembled, these protecting groups are removed to reveal the active peptide.
The CAS Registry Mumber 83550-60-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,5 and 0 respectively; the second part has 2 digits, 6 and 0 respectively. Calculate Digit Verification of CAS Registry Number 83550-60: (7*8)+(6*3)+(5*5)+(4*5)+(3*0)+(2*6)+(1*0)=131 131 % 10 = 1 So 83550-60-1 is a valid CAS Registry Number.