"Z(OMe)-Cys(CH2PhOMe)-Lys(Z)-OMe" is a complex peptide derivative consisting of three amino acids: cysteine (Cys), lysine (Lys), and a modified cysteine with a phenylmethyl ether group (Cys(CH2PhOMe)). The peptide is protected with the Z group (benzyloxycarbonyl) at the N-terminus and the side chains of cysteine and lysine, as well as a methoxy group (OMe) at the N-terminus and the side chain of lysine. This specific chemical structure is designed to prevent unwanted side reactions during peptide synthesis, such as unwanted side-chain modifications or premature cleavage of the peptide from the resin support. The Z group is a common protecting group in peptide chemistry, which can be removed under mild acidic conditions, allowing for the controlled synthesis of peptides. The presence of the phenylmethyl ether group on the cysteine residue suggests that this peptide may be used in studies involving steric hindrance or in the development of peptidomimetics. Overall, "Z(OMe)-Cys(CH2PhOMe)-Lys(Z)-OMe" represents a carefully designed peptide with specific protective groups to facilitate its synthesis and potential applications in biological research or drug development.
The CAS Registry Mumber 56936-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,9,3 and 6 respectively; the second part has 2 digits, 3 and 9 respectively. Calculate Digit Verification of CAS Registry Number 56936-39: (7*5)+(6*6)+(5*9)+(4*3)+(3*6)+(2*3)+(1*9)=161 161 % 10 = 1 So 56936-39-1 is a valid CAS Registry Number.