Glycyl-DL-phenylalanyl-glycine, also known as GPG, is a tripeptide composed of three amino acids: glycine, DL-phenylalanine, and glycine. Glycine is a simple amino acid with a single hydrogen atom as its side chain, while DL-phenylalanine is an essential amino acid with a phenyl ring attached to its side chain. The "DL" prefix indicates that the molecule is a racemic mixture, containing both the D and L isomers of phenylalanine. In GPG, these amino acids are linked together by peptide bonds, forming a linear chain. This specific sequence of amino acids is of interest in the field of biochemistry and may have potential applications in drug development and understanding peptide structure-function relationships.
The CAS Registry Mumber 5230-73-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,3 and 0 respectively; the second part has 2 digits, 7 and 3 respectively. Calculate Digit Verification of CAS Registry Number 5230-73: (6*5)+(5*2)+(4*3)+(3*0)+(2*7)+(1*3)=69 69 % 10 = 9 So 5230-73-9 is a valid CAS Registry Number.