"Z(OMe)-Arg(Mts)-Tyr-OMe" is a peptide sequence consisting of four amino acids: Z(OMe), Arg(Mts), Tyr, and OMe. Z(OMe) represents a benzyloxycarbonyl-protected methoxy group, which is commonly used to protect the N-terminus of a peptide during synthesis. Arg(Mts) is an arginine residue with a 4-methyltrityl (Mts) protecting group on its side chain, which is used to protect the guanidinium group during peptide synthesis. Tyr is a tyrosine residue, an aromatic amino acid with a phenolic side chain. OMe stands for a methoxy group, which is attached to the C-terminus of the peptide. This specific sequence is often used in peptide synthesis research, particularly in the development of new drugs and understanding protein-protein interactions. The protecting groups are crucial for the controlled synthesis of the peptide, ensuring that the reactive groups are only exposed at the appropriate stages of the synthesis process.
The CAS Registry Mumber 74863-22-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,6 and 3 respectively; the second part has 2 digits, 2 and 2 respectively. Calculate Digit Verification of CAS Registry Number 74863-22: (7*7)+(6*4)+(5*8)+(4*6)+(3*3)+(2*2)+(1*2)=152 152 % 10 = 2 So 74863-22-2 is a valid CAS Registry Number.