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20168-13-2

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20168-13-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20168-13-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,6 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20168-13:
(7*2)+(6*0)+(5*1)+(4*6)+(3*8)+(2*1)+(1*3)=72
72 % 10 = 2
So 20168-13-2 is a valid CAS Registry Number.

20168-13-2Relevant articles and documents

Synthesis of resolution of 2-arylalkyl-2-(tetrazol-5-yl)-N-arylalkyl-carboxamides. A new class of chiral sterically hindered tetrazole derivatives

Moriarty,Levy

, p. 155 - 160 (2007/10/02)

Chiral, racemic 2-arylalkyl-2-(tetrazol-5-yl)-N-arylalkylcarboxamides 3 were conveniently prepared from ethyl cyanoacetate in four steps. The synthetic methodology developed is a facile way of introducing bulky substituents into a peptide-like framework,

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