"Z(OMe)-Arg(Mts)-Val-NHNH-Troc" is a peptide sequence consisting of four amino acids: Z(OMe), Arg(Mts), Val, and NHNH, with a Troc protecting group. Z(OMe) represents a carbobenzoxy (Cbz) group with a methoxyethyl (OMe) substitution, which is a common protecting group for the N-terminus of peptides. Arg(Mts) is an arginine residue with a 4-methyltrityl (Mts) group attached, which serves as a protecting group for the side chain. Val is the abbreviation for valine, a hydrophobic amino acid. NHNH indicates a free amine group at the C-terminus, which is essential for further peptide bond formation. The Troc group, or trityl group, is a bulky protecting group attached to the peptide, which can be removed under specific conditions to reveal the free amine group. This peptide sequence is of interest in peptide synthesis and drug development due to its unique protecting groups and potential for further modification.
The CAS Registry Mumber 82882-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,8 and 2 respectively; the second part has 2 digits, 9 and 9 respectively. Calculate Digit Verification of CAS Registry Number 82882-99: (7*8)+(6*2)+(5*8)+(4*8)+(3*2)+(2*9)+(1*9)=173 173 % 10 = 3 So 82882-99-3 is a valid CAS Registry Number.