"Z-Tyr-Arg(Mts)-Gly-Phe-Leu-NH2" is a synthetic peptide consisting of seven 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 tyrosine (Tyr), arginine with a methanethiosulfonate (Mts) modification, glycine (Gly), phenylalanine (Phe), and leucine (Leu), with an amide group (NH2) at the C-terminus. This specific arrangement of amino acids and modifications can influence the peptide's biological activity, stability, and interaction with target proteins or receptors. The Mts modification on arginine is particularly noteworthy as it can enhance the peptide's reactivity with certain thiol-containing molecules, potentially affecting its pharmacological properties.
The CAS Registry Mumber 76939-19-0 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 9 respectively. Calculate Digit Verification of CAS Registry Number 76939-19: (7*7)+(6*6)+(5*9)+(4*3)+(3*9)+(2*1)+(1*9)=180 180 % 10 = 0 So 76939-19-0 is a valid CAS Registry Number.