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4131-56-0

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4131-56-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4131-56-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,3 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4131-56:
(6*4)+(5*1)+(4*3)+(3*1)+(2*5)+(1*6)=60
60 % 10 = 0
So 4131-56-0 is a valid CAS Registry Number.

4131-56-0Relevant articles and documents

Cationic dirhodium carboxylate-catalyzed synthesis of dihydropyrimidones from propargyl ureas

Yang, Miao,Odelberg, Shannon J.,Tong, Zongzhong,Li, Dean Y.,Looper, Ryan E.

supporting information, p. 5744 - 5750 (2013/06/27)

Cationic Rh(II) complexes are able to catalyze the regioselective hydroamination of propargyl ureas in a 6-endo fashion. This transformation permits access to interesting substitution patterns of dihydropyrimidines, which have found use as nucleotide exch

Homogeneous catalysts supported on soluble polymers: Biphasic Sonogashira coupling of aryl halides and acetylenes using MeOPEG-bound phosphine - Palladium catalysts for efficient catalyst recycling

Koellhofer, Axel,Plenio, Herbert

, p. 1416 - 1425 (2007/10/03)

The Sonogashira coupling of various aryl bromides and iodides with different acetylenes was studied under biphasic conditions with soluble, polymer-modified catalysts to allow the efficient recycling of the homogeneous catalyst. For this purpose, several

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