The chemical sequence "Z-Arg(NO2)-Lys(Z)-Asp(OBzl)-Val-Tyr-Val-Glu(OBzl)-Leu-Tyr-Leu-NHNH-Troc" represents a peptide with a specific arrangement of amino acids. This peptide is synthesized with protective groups to facilitate its synthesis and stability. The "Z" groups are benzyloxycarbonyl (Cbz) protecting groups, which are commonly used to protect the amino group of lysine and arginine. The "OBzl" groups are benzyl esters, protecting the carboxyl group of aspartic and glutamic acids. The "Troc" group is 2,2,2-trichloroethoxycarbonyl, a protecting group for the amino terminus. This peptide is a complex structure with a specific sequence of amino acids, each with its own side chain, and the protective groups are crucial for the peptide's synthesis and reactivity. The sequence suggests it could be a part of a larger biologically active molecule, such as a protein or a peptide drug, designed for specific therapeutic or research purposes.
The CAS Registry Mumber 84979-64-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,7 and 9 respectively; the second part has 2 digits, 6 and 4 respectively. Calculate Digit Verification of CAS Registry Number 84979-64: (7*8)+(6*4)+(5*9)+(4*7)+(3*9)+(2*6)+(1*4)=196 196 % 10 = 6 So 84979-64-6 is a valid CAS Registry Number.