"Z-Lys(ε-Boc)-Leu-Ser-Gln-Asp(β-OBut)-OH" is a peptide compound consisting of six amino acids: Z-protected lysine (Lys), leucine (Leu), serine (Ser), glutamine (Gln), and β-protected aspartic acid (Asp). The "Z" and "Boc" groups are protecting groups used in peptide synthesis to prevent unwanted side reactions. The "Z" group is a benzyloxycarbonyl group, while "Boc" stands for tert-butoxycarbonyl. The "OBut" group is a tert-butyl ester protecting group on the side chain of aspartic acid. This specific sequence and protection scheme are designed to facilitate controlled peptide synthesis, where the protecting groups are removed at specific stages to allow for the formation of peptide bonds between the amino acids. The final "-OH" indicates a hydroxyl group at the C-terminus of the peptide, which can be used for further reactions or to terminate the peptide chain.
The CAS Registry Mumber 85546-49-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,5,4 and 6 respectively; the second part has 2 digits, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 85546-49: (7*8)+(6*5)+(5*5)+(4*4)+(3*6)+(2*4)+(1*9)=162 162 % 10 = 2 So 85546-49-2 is a valid CAS Registry Number.