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497845-53-1

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497845-53-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 497845-53-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,8,4 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 497845-53:
(8*4)+(7*9)+(6*7)+(5*8)+(4*4)+(3*5)+(2*5)+(1*3)=221
221 % 10 = 1
So 497845-53-1 is a valid CAS Registry Number.

497845-53-1Relevant articles and documents

Convenient synthesis of polyfunctionalized β-fluoropyrroles from rhodium(II)-catalyzed intramolecular N-H insertion reactions

Wang, Yanli,Zhu, Shizheng

, p. 745 - 748 (2007/10/03)

(Matrix presented) Polyfunctionalized β-fluoropyrrole can be readily prepared from rhodium(II) acetate-catalyzed intramolecular N-H insertion reaction of δ-amino-γ,γ-difluoro-α-diazo-β -ketoesters. A cyanomethylene group can be introduced at C-3 of the py

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