"Z-Tyr-Val-Pro-Val-His-Phe-Asn-Ala-Ser-Val-OBzl" is a peptide sequence consisting of 12 amino acids, where "Z" represents a carbobenzoxy (Cbz) protecting group, commonly used in peptide synthesis to protect the N-terminal amino group. The sequence is composed of the following amino acids: Tyrosine (Tyr), Valine (Val), Proline (Pro), Histidine (His), Phenylalanine (Phe), Asparagine (Asn), Alanine (Ala), Serine (Ser), and another Valine (Val). This specific arrangement of amino acids may have unique biological properties or be part of a larger protein structure. The OBzl at the end indicates a benzyl ester group, which is another protecting group used in peptide chemistry, suggesting that this peptide is likely in a protected form for further chemical manipulation or synthesis.
The CAS Registry Mumber 95303-54-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,3,0 and 3 respectively; the second part has 2 digits, 5 and 4 respectively. Calculate Digit Verification of CAS Registry Number 95303-54: (7*9)+(6*5)+(5*3)+(4*0)+(3*3)+(2*5)+(1*4)=131 131 % 10 = 1 So 95303-54-1 is a valid CAS Registry Number.