"Z(OMe)-Thr-Ser-Ser-Glu(OBzl)-Ile-NHNH-Troc" represents a peptide sequence, where each abbreviation corresponds to a specific amino acid or chemical group. "Z(OMe)" stands for a carbobenzoxy group with a methoxy group, which is a protecting group used in peptide synthesis. "Thr" is the abbreviation for threonine, "Ser" for serine, "Glu(OBzl)" for glutamic acid with a benzyl ester protecting group, "Ile" for isoleucine, and "NHNH" indicates the presence of a terminal amine group. "Troc" is the abbreviation for 2,2,2-trichloroethoxycarbonyl, another protecting group. This sequence is a complex peptide with multiple protecting groups, which are crucial for the stepwise synthesis of peptides to prevent unwanted side reactions and ensure the correct formation of peptide bonds. The specific arrangement and protection of these amino acids suggest that this peptide is designed for a particular biological or chemical application, where the protecting groups will be removed at appropriate stages to reveal the active peptide.
The CAS Registry Mumber 83563-14-8 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 4 respectively. Calculate Digit Verification of CAS Registry Number 83563-14: (7*8)+(6*3)+(5*5)+(4*6)+(3*3)+(2*1)+(1*4)=138 138 % 10 = 8 So 83563-14-8 is a valid CAS Registry Number.