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The chemical sequence "Z-D-Val-L-HyIv-L-Ala-D-HyIv-D-Val-L-HyIv-L-Ala-D-HyIv-OtBu" represents a peptide composed of various amino acids and a protecting group. The peptide is synthesized in a specific order, with "Z" indicating a carbobenzoxy (Cbz) protecting group, "D" and "L" denoting D- and L-isomers of amino acids, respectively. The sequence includes Val (valine), HyIv (hydroxyisovaleric acid), Ala (alanine), and OtBu (tert-butyloxycarbonyl). This particular arrangement of amino acids and protecting groups suggests that the peptide may have a specific biological function or be used in a chemical synthesis process. The exact purpose and properties of this peptide would depend on its intended application and the context in which it is being used.

31509-01-0

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31509-01-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31509-01-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,0 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 31509-01:
(7*3)+(6*1)+(5*5)+(4*0)+(3*9)+(2*0)+(1*1)=80
80 % 10 = 0
So 31509-01-0 is a valid CAS Registry Number.
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