"Z-Arg(δ,ω-Z2)-Lys(BOC)-OH" is a complex peptide compound consisting of three amino acids: Z-protected arginine (Z-Arg), lysine with a BOC protecting group (Lys(BOC)), and a terminal hydroxyl group (-OH). The δ,ω-Z2 notation indicates that the arginine has a Z group attached to both the δ and ω positions, which are the side chain and the terminal amino group, respectively. Z-Arg(δ,ω-Z2)-Lys(BOC)-OH is often used in peptide synthesis, where the protecting groups (Z and BOC) are crucial for preventing unwanted side reactions during the assembly of the peptide chain. The Z group is a benzyloxycarbonyl (Cbz) protecting group, which is commonly used to protect the amino group of arginine, while the BOC group protects the amino group of lysine. The terminal hydroxyl group signifies the end of the peptide sequence. This specific peptide is of interest in the field of organic chemistry and biochemistry, particularly in the synthesis of larger, more complex peptides and proteins.
The CAS Registry Mumber 75141-52-5 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 2 respectively. Calculate Digit Verification of CAS Registry Number 75141-52: (7*7)+(6*5)+(5*1)+(4*4)+(3*1)+(2*5)+(1*2)=115 115 % 10 = 5 So 75141-52-5 is a valid CAS Registry Number.