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717110-08-2

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717110-08-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 717110-08-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,7,1,1 and 0 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 717110-08:
(8*7)+(7*1)+(6*7)+(5*1)+(4*1)+(3*0)+(2*0)+(1*8)=122
122 % 10 = 2
So 717110-08-2 is a valid CAS Registry Number.

717110-08-2Relevant articles and documents

Synthesis and study of 1-aryl-1H-4,5-dihydroimidazoles

Perillo, Isabel,Caterina, M. Cristina,Lopez, Julieta,Salerno, Alejandra

, p. 851 - 856 (2007/10/03)

An easy synthesis of 1-aryl-1H-4,5-dihydroimidazoles 1 by cyclocondensation of N-aryl-N′-formylethylenediamines 2 is described. Such precursors were synthesized by selective formylation of N-arylethylenediamines 3 with p-nitrophenyl formate. Cyclizations were performed using trimethylsilyl polyphosphate. Chemical properties of compounds 1, typical of amidine system, were studied. Reaction of 1 with methyl iodide leads to the corresponding 1-aryl-3-methyl-1H-4,5-dihydroimidazolium salts 5. Reduction of dihydroimidazoles 1 with sodium cyanoborohydride provides a convenient access to N-aryl-N′-methylethylenediamines 4.

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