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20107-78-2

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20107-78-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20107-78-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,0 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20107-78:
(7*2)+(6*0)+(5*1)+(4*0)+(3*7)+(2*7)+(1*8)=62
62 % 10 = 2
So 20107-78-2 is a valid CAS Registry Number.

20107-78-2Relevant articles and documents

On the Structure of Carbamoylated 2-Phenylaminopyridines

Morkved, Eva H.

, p. 393 - 400 (2007/10/02)

Unambiguous preparations of 2-(N-alkoxycarbonyl-N-phenyl)aminopyridine 1-oxides are used to prove that the product from 2-phenylaminopyridine 3 and phenyl isocyanate is the expected urea 2a.Recently a 1,2-dihydropyridine derivative 1 has been claimed to be the product from 3 and phenyl isocyanate.The exocyclic nitrogen of 3 invariably reacts as the nucleophile towards electrophiles such as carbonyl chloride, esters of chloromethanoic acid and aryl isocyanates. 1H n.m.r. and 13C n.m.r. spectra support the assigned structures of the products from these reactions.

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