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20104-40-9

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20104-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20104-40-9 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 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20104-40:
(7*2)+(6*0)+(5*1)+(4*0)+(3*4)+(2*4)+(1*0)=39
39 % 10 = 9
So 20104-40-9 is a valid CAS Registry Number.

20104-40-9Relevant articles and documents

Selective and general exhaustive cross-coupling of di-chloroarenes with a deficit of nucleophiles mediated by a Pd-NHC complex

Groombridge, Benjamin J.,Goldup, Stephen M.,Larrosa, Igor

, p. 3832 - 3834 (2015)

We report the first example of a general, exhaustive Pd-mediated cross-coupling of polychloroarenes in the presence of a deficit of nucleophiles, mediated by the highly active PEPPSI-IPent catalyst. Our results indicate that this catalyst system may be applicable to the pseudo-living polymerisation of chloroarene monomers.

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