"Z(OMe)-Leu-Arg(Mts)-NHNH2" is a peptide compound consisting of four amino acid residues: Z(OMe), Leu, Arg(Mts), and NHNH2. Z(OMe) represents a protected amino acid, where the Z group is a benzyloxycarbonyl (Cbz) protecting group, and the OMe group is a methoxy group. Leu stands for leucine, an essential amino acid. Arg(Mts) denotes arginine with a 4-methyltrityl (Mts) protecting group. NHNH2 is a terminal group, indicating the presence of a free amine group at the end of the peptide chain. Z(OMe)-Leu-Arg(Mts)-NHNH2 is likely used in peptide synthesis, where protecting groups are essential to prevent unwanted side reactions during the assembly process. The Mts group on arginine and the Z(OMe) group on the N-terminus are temporary modifications that can be removed under specific conditions to reveal the free amino and carboxyl groups, respectively, allowing for further peptide bond formation or other chemical modifications.
The CAS Registry Mumber 98328-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,3,2 and 8 respectively; the second part has 2 digits, 2 and 5 respectively. Calculate Digit Verification of CAS Registry Number 98328-25: (7*9)+(6*8)+(5*3)+(4*2)+(3*8)+(2*2)+(1*5)=167 167 % 10 = 7 So 98328-25-7 is a valid CAS Registry Number.