The chemical sequence "Z(OMe)-Ser-Asp(OBzl)-Ala-Ala-Val-Asp(OBzl)-Thr-Ser-Ser-Glu(OBzl)-Ile-NHNH-Troc" represents a peptide with a specific arrangement of amino acids. This peptide is modified with protective groups and has a unique structure. The "Z(OMe)" at the beginning indicates the presence of a benzyloxycarbonyl (Z) group with a methoxy group (OMe), which is a common protecting group in peptide synthesis. "Asp(OBzl)" and "Glu(OBzl)" denote aspartic acid and glutamic acid, respectively, with a benzyl ester protecting group on their carboxylic acid side chains. The sequence includes a variety of amino acids such as serine (Ser), alanine (Ala), valine (Val), threonine (Thr), and isoleucine (Ile), which contribute to the peptide's overall properties. The "NHNH-Troc" at the end suggests the presence of a troc (2,2,2-trichloroethoxycarbonyl) group, which is used to protect the terminal amine group. This peptide is likely part of a larger study or synthesis process, where these modifications are crucial for controlling the reactivity and stability of the peptide during synthesis and purification.
The CAS Registry Mumber 83563-16-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,6 and 3 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 83563-16: (7*8)+(6*3)+(5*5)+(4*6)+(3*3)+(2*1)+(1*6)=140 140 % 10 = 0 So 83563-16-0 is a valid CAS Registry Number.