"Z-Tyr-D-Arg(Mts)-Gly-Phe-Leu-OH" is a synthetic peptide consisting of eight amino acids. It is characterized by the presence of a Z-group, which is a protecting group used in peptide synthesis to prevent unwanted side reactions. The sequence includes D-Arg(Mts), where D-Arg stands for D-arginine, an amino acid with a positively charged side chain, and Mts refers to a methanethiosulfonate group, which can be used to introduce a reactive thiol group into the peptide. The other amino acids in the sequence are tyrosine (Tyr), glycine (Gly), phenylalanine (Phe), and leucine (Leu). This specific arrangement of amino acids may be designed for a particular biological activity or as a substrate for enzymatic studies. The peptide's structure and properties can be influenced by the chirality of the amino acids, the protecting groups, and the specific functional groups attached, making it a versatile molecule for various applications in biochemistry and pharmacology.
The CAS Registry Mumber 76939-18-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,9,3 and 9 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 76939-18: (7*7)+(6*6)+(5*9)+(4*3)+(3*9)+(2*1)+(1*8)=179 179 % 10 = 9 So 76939-18-9 is a valid CAS Registry Number.