"Z(OMe)-Asp(OBzl)-Val-His-Asn-Phe-NH2" is a peptide sequence consisting of seven amino acids. The sequence starts with Z(OMe)-Asp, where Z(OMe) represents a benzyloxycarbonyl group attached to the N-terminus of aspartic acid (Asp), a common protecting group in peptide synthesis. This is followed by valine (Val), histidine (His), asparagine (Asn), phenylalanine (Phe), and ends with an amide group (NH2). The OBzl in Asp(OBzl) indicates a benzyl ester protecting group on the side chain carboxyl group of aspartic acid. This specific sequence and the presence of protecting groups suggest that it is a synthetic peptide designed for a specific biological or chemical purpose, likely in a research or pharmaceutical context. The protecting groups are crucial for preventing unwanted side reactions during the synthesis process and are removed at a later stage to reveal the active peptide.
The CAS Registry Mumber 83069-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,0,6 and 9 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 83069-70: (7*8)+(6*3)+(5*0)+(4*6)+(3*9)+(2*7)+(1*0)=139 139 % 10 = 9 So 83069-70-9 is a valid CAS Registry Number.