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84353-53-7

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84353-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84353-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,3,5 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84353-53:
(7*8)+(6*4)+(5*3)+(4*5)+(3*3)+(2*5)+(1*3)=137
137 % 10 = 7
So 84353-53-7 is a valid CAS Registry Number.

84353-53-7Relevant articles and documents

Reaction of Indol-3(2H)-one Derivatives With Some Active Methylene Compounds

Daisley, Roy W.,Elagbar, Zaha A.,Walker, John

, p. 1013 - 1016 (2007/10/02)

The reaction of substituted (Z)- and (E)-2-arylmethylideneindolin-3(2H)-ones with malononitrile gave the Michael addition products which could be cyclised to the corresponding pyranoindole.Larger molecules such as cyanoacetic acid and ethyl cyanoacetate failed to react.

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