"Z(OMe)-His(MBS)-Pro-NH2" is a peptide compound consisting of four amino acids: Z(OMe), His(MBS), Pro, and NH2. Z(OMe) represents a protected form of the amino acid methionine, where the sulfur atom is blocked by a methoxy group. His(MBS) is a derivative of histidine with a 4-methoxybenzenesulfonyl (MBS) group attached, which is used to protect the imidazole side chain. Proline (Pro) is an amino acid with a cyclic structure, and NH2 is the amine group, indicating the free amino terminus of the peptide. This sequence is often used in peptide synthesis for various biological and pharmaceutical applications, such as studying protein-protein interactions or as a building block in drug design. The specific protection groups suggest that this peptide is designed for use in solid-phase peptide synthesis, where the protecting groups can be selectively removed to allow for further reactions or to expose the functional groups of the amino acids.
The CAS Registry Mumber 74528-29-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,2 and 8 respectively; the second part has 2 digits, 2 and 9 respectively. Calculate Digit Verification of CAS Registry Number 74528-29: (7*7)+(6*4)+(5*5)+(4*2)+(3*8)+(2*2)+(1*9)=143 143 % 10 = 3 So 74528-29-3 is a valid CAS Registry Number.