"Z(OMe)-Lys(Z)-His-NHNH2" is a complex peptide compound consisting of four amino acids: Z(OMe)-Lys(Z), His, and NHNH2. Z(OMe)-Lys(Z) is a modified lysine residue, where the epsilon-amino group is protected by a benzyl group (Z) and a methoxymethyl group (OMe). His refers to histidine, an amino acid with an imidazole side chain. NHNH2 represents a terminal amino group, indicating that the peptide is not further extended. This specific sequence and modification are likely designed for a particular biological or chemical purpose, such as stabilizing a protein structure, inhibiting an enzyme, or serving as a substrate for a specific reaction. The exact function and application of this peptide would depend on the context in which it is used, such as in drug design, protein engineering, or chemical biology research.
The CAS Registry Mumber 57229-89-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,2 and 9 respectively; the second part has 2 digits, 8 and 9 respectively. Calculate Digit Verification of CAS Registry Number 57229-89: (7*5)+(6*7)+(5*2)+(4*2)+(3*9)+(2*8)+(1*9)=147 147 % 10 = 7 So 57229-89-7 is a valid CAS Registry Number.