"Z-Arg(δ,ω-Z2)-Glu(OtBu)-Arg-Lys(BOC)-OH" is a complex peptide compound consisting of five amino acids: Z-protected arginine (Z-Arg), glutamic acid (Glu) with a tert-butyl (OtBu) group, two additional arginine residues, and a lysine (Lys) with a tert-butyloxycarbonyl (BOC) protecting group. The δ and ω in the name refer to the positions of the Z2 protecting group on the arginine side chain. This peptide is characterized by its specific sequence and protective groups, which are crucial for its stability and reactivity in chemical synthesis and biological applications. The BOC group on lysine is a common strategy to protect the amino group during peptide synthesis, preventing unwanted side reactions. The overall structure and protective groups of this peptide are designed to facilitate its use in various biochemical and pharmaceutical processes, such as drug development or protein engineering.
The CAS Registry Mumber 75141-56-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,4 and 1 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 75141-56: (7*7)+(6*5)+(5*1)+(4*4)+(3*1)+(2*5)+(1*6)=119 119 % 10 = 9 So 75141-56-9 is a valid CAS Registry Number.