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1207997-24-7

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1207997-24-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1207997-24-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,7,9,9 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1207997-24:
(9*1)+(8*2)+(7*0)+(6*7)+(5*9)+(4*9)+(3*7)+(2*2)+(1*4)=177
177 % 10 = 7
So 1207997-24-7 is a valid CAS Registry Number.

1207997-24-7Downstream Products

1207997-24-7Relevant articles and documents

Synthesis of zwitterionic salts of pyridinium-meldrum acid and barbiturate through unique four-component reactions

Wang, Qi-Fang,Hui, Li,Hou, Hong,Yan, Chao-Guo

supporting information; experimental part, p. 260 - 265 (2010/08/05)

An efficient synthetic procedure for the preparation of the unusual charge-separated pyridinium-Meldrum acid and N,N-dimethylbarbiturate acid zwitterionic salts was developed though a unique one-pot fourcomponent reaction involving pyridine, aromatic aldehyde, Meldrum acid or N,N-dimethylbarbituric acid, and p-nitrobenzyl bromide in acetonitrile. By varying combinations of four components involving nitrogencontaining heterocycles, we conveniently established reactiveα-halomethylene compounds, aldehydes and β-dicarbonyl compounds a library of zwitterionic salts.

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