The chemical "tert.-Butoxycarbonyl-Asn-(tert.-butoxycarbonyl)Lys-Phe-Ile-Gly-Leu-Met-NH2" is a complex peptide compound consisting of nine amino acids. It features a tert-butoxycarbonyl (Boc) group protecting the N-terminal asparagine (Asn) and lysine (Lys) residues, which is a common strategy in peptide synthesis to prevent unwanted side reactions. The sequence includes phenylalanine (Phe), isoleucine (Ile), glycine (Gly), leucine (Leu), and methionine (Met), which contribute to the peptide's structure and potential biological activity. The peptide ends with an amide group (NH2), indicating a C-terminal amide. This specific sequence and protection strategy suggest that it is designed for controlled synthesis, potentially for pharmaceutical or research purposes, where the Boc groups can be removed under specific conditions to reveal the free amino groups for further reactions or to form a functional peptide.
The CAS Registry Mumber 6521-95-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,2 and 1 respectively; the second part has 2 digits, 9 and 5 respectively. Calculate Digit Verification of CAS Registry Number 6521-95: (6*6)+(5*5)+(4*2)+(3*1)+(2*9)+(1*5)=95 95 % 10 = 5 So 6521-95-5 is a valid CAS Registry Number.