"Z-D-Val-D-Lac-L-Val-L-HyIv-D-Val-D-Lac-L-Val-L-HyIv-OtBu" is a complex peptide sequence consisting of multiple amino acids. The sequence starts with Z-D-Val, indicating a D-valine (D-Val) residue with a Z protecting group. This is followed by D-Lac, L-Val, and L-HyIv, which represent D-lactate, L-valine (L-Val), and L-hydroxyisovalerate (L-HyIv), respectively. The sequence then repeats with D-Val, D-Lac, L-Val, and L-HyIv, and ends with OtBu, which is a tert-butyloxycarbonyl (Boc) protecting group. This peptide is characterized by its alternating pattern of D and L amino acids, as well as the presence of protecting groups that are crucial for its stability and reactivity in chemical synthesis. The specific arrangement and composition of these amino acids and protecting groups suggest that this peptide may have unique properties and potential applications in fields such as pharmaceuticals, biotechnology, or materials science.
The CAS Registry Mumber 13798-70-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,9 and 8 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 13798-70: (7*1)+(6*3)+(5*7)+(4*9)+(3*8)+(2*7)+(1*0)=134 134 % 10 = 4 So 13798-70-4 is a valid CAS Registry Number.