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21772-65-6

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21772-65-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21772-65-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,7 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21772-65:
(7*2)+(6*1)+(5*7)+(4*7)+(3*2)+(2*6)+(1*5)=106
106 % 10 = 6
So 21772-65-6 is a valid CAS Registry Number.

21772-65-6Downstream Products

21772-65-6Relevant articles and documents

The Structure of a Toxic Octapeptide from the Larvae of Sawfly

Williams, Dudley H.,Santikarn, Sitthivet,Angelis, Francesco De,Smith, Richard J.,Reid, David G.,at al.

, p. 1869 - 1878 (2007/10/02)

The amino acid sequence of an octapeptide from sawfly (Lophyrotoma interrupta) larvae, which acts as a liver toxin, has been determined as C6H5COAla-Phe-Val-Ile-Asp-Asp-Glu-Gln.The amino acids, Ala, Phe, Asp5, and Glu7 residues, have the D absolute configuration.

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