"Z(OMe)-Ser-Asp(OBzl)-Ala-Ala-Val-NHNH-Troc" is a peptide sequence consisting of seven amino acids, with specific protecting groups and modifications. The sequence starts with Z(OMe)-Ser, where Z(OMe) represents a benzyloxycarbonyl (Cbz) group with a methoxyethyl (OMe) substitution, protecting the serine (Ser) amino acid. This is followed by Asp(OBzl), where Asp is aspartic acid and OBzl denotes a benzyl ester protecting group. The sequence continues with three more amino acids: alanine (Ala), alanine (Ala), and valine (Val). The peptide is capped with an NHNH group, indicating a free amine at the C-terminus, and a Troc group, which is a 2,2,2-trichloroethoxycarbonyl protecting group, at the N-terminus. This specific sequence and the presence of protecting groups suggest that it is designed for use in peptide synthesis, where the protecting groups are crucial for controlling the reactivity of the peptide during synthesis and protecting specific functional groups until the desired point in the process.
The CAS Registry Mumber 83563-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,6 and 3 respectively; the second part has 2 digits, 1 and 5 respectively. Calculate Digit Verification of CAS Registry Number 83563-15: (7*8)+(6*3)+(5*5)+(4*6)+(3*3)+(2*1)+(1*5)=139 139 % 10 = 9 So 83563-15-9 is a valid CAS Registry Number.