The given sequence "Z(OMe)-Ser-Asp(OBzl)-Ala-Ala-Val-Asp(OBzl)-Thr-Ser-Ser-Glu(OBzl)-Ile-NHNH2" represents a peptide, which is a chain of amino acids. In this peptide, each three-letter abbreviation corresponds to a specific amino acid: Ser for serine, Asp for aspartic acid, Ala for alanine, Val for valine, Thr for threonine, Glu for glutamic acid, and Ile for isoleucine. The peptide is modified with protective groups: Z(OMe) is a benzyloxycarbonyl group attached to the N-terminus, and OBzl represents a benzyl ester group on the side chains of aspartic and glutamic acids. The sequence ends with a terminal NHNH2 group, indicating a free amine group at the C-terminus. This peptide is likely used in biochemical research or as a building block in the synthesis of larger proteins or drug candidates.
The CAS Registry Mumber 83550-73-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,5 and 0 respectively; the second part has 2 digits, 7 and 3 respectively. Calculate Digit Verification of CAS Registry Number 83550-73: (7*8)+(6*3)+(5*5)+(4*5)+(3*0)+(2*7)+(1*3)=136 136 % 10 = 6 So 83550-73-6 is a valid CAS Registry Number.