"Z-Lys(Boc)-Trp-Asp(OBut)-Asn-Gln-OBut" is a peptide sequence consisting of six amino acids: Z-Lys(Boc), Trp, Asp(OBut), Asn, Gln, and OBut. The sequence is characterized by the presence of protecting groups, such as the Boc group on lysine and the OBut group on aspartic acid and the C-terminal end. These protecting groups are crucial for the synthesis of the peptide, as they prevent unwanted side reactions and ensure the correct formation of peptide bonds. The sequence also includes a tryptophan residue, which is known for its ability to absorb light in the ultraviolet range, and aspartic acid, which is an acidic amino acid. The peptide's structure and composition suggest it may have specific biological activity or be used in the study of peptide synthesis and protein folding.
The CAS Registry Mumber 83428-86-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,4,2 and 8 respectively; the second part has 2 digits, 8 and 6 respectively. Calculate Digit Verification of CAS Registry Number 83428-86: (7*8)+(6*3)+(5*4)+(4*2)+(3*8)+(2*8)+(1*6)=148 148 % 10 = 8 So 83428-86-8 is a valid CAS Registry Number.