"Z(OMe)-Met(O)-Ala-NHNH2" is a peptide compound consisting of four amino acid residues: Z(OMe), Met(O), Ala, and NHNH2. Z(OMe) represents a benzyloxycarbonyl (Z) group with a methoxy (OMe) substitution, which is commonly used as a protecting group in peptide synthesis. Met(O) denotes a methionine (Met) residue with an oxygen atom (O) attached to its sulfur atom, forming a methionine sulfoxide. Ala stands for alanine, a simple amino acid with a single methyl side chain. NHNH2 is a terminal group consisting of a primary amine (NH2) and a secondary amine (NH), which can be involved in various chemical reactions. This peptide is of interest in the field of organic chemistry and biochemistry, particularly in the study of peptide synthesis and the development of new pharmaceuticals.
The CAS Registry Mumber 74104-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,0 and 4 respectively; the second part has 2 digits, 9 and 7 respectively. Calculate Digit Verification of CAS Registry Number 74104-97: (7*7)+(6*4)+(5*1)+(4*0)+(3*4)+(2*9)+(1*7)=115 115 % 10 = 5 So 74104-97-5 is a valid CAS Registry Number.