Z-Ser(Bzl)-Leu-NH2 is a tripeptide, which is a short chain of three amino acids. In this specific compound, the amino acids are serine (Ser), leucine (Leu), and a terminal amino group (NH2). The "Z" prefix stands for the benzyloxycarbonyl (Cbz) protecting group, which is commonly used in peptide synthesis to protect the amino group of serine. The "Bzl" in parentheses indicates that the serine residue has a benzyl group attached to it, which is another protecting group. Z-Ser(Bzl)-Leu-NH2 is often used in the synthesis of larger peptides and proteins, where the protecting groups are later removed to allow for further reactions or to form the final peptide product. The sequence and protection of the amino acids are crucial for controlling the peptide's reactivity and ensuring the correct formation of peptide bonds during synthesis.
The CAS Registry Mumber 70497-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,4,9 and 7 respectively; the second part has 2 digits, 4 and 5 respectively. Calculate Digit Verification of CAS Registry Number 70497-45: (7*7)+(6*0)+(5*4)+(4*9)+(3*7)+(2*4)+(1*5)=139 139 % 10 = 9 So 70497-45-9 is a valid CAS Registry Number.