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82113-13-1

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82113-13-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82113-13-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,1 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 82113-13:
(7*8)+(6*2)+(5*1)+(4*1)+(3*3)+(2*1)+(1*3)=91
91 % 10 = 1
So 82113-13-1 is a valid CAS Registry Number.

82113-13-1Relevant articles and documents

Improved Synthesis of chlamydocin: Cyclization Studies of Tetrapeptides Containing Five α-Substituents

Pastuszak, Jacek,Gardner, Joseph H.,Singh, Jasbir,Rich, Daniel H.

, p. 2982 - 2987 (2007/10/02)

A complete search for the optimal conditions for preparing cycling tetrapeptide 2 was carried out.In this study all four possible sequences of the linear tetrapeptide precursors were synthesized and cyclized.The results establish that one linear sequence is especially favorable for synthesizing the peptide ring system in chlamydocin (1).

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