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503441-52-9

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503441-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503441-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,4,4 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 503441-52:
(8*5)+(7*0)+(6*3)+(5*4)+(4*4)+(3*1)+(2*5)+(1*2)=109
109 % 10 = 9
So 503441-52-9 is a valid CAS Registry Number.

503441-52-9Relevant articles and documents

Cyclic allene intermediates in intramolecular dehydro Diels-Alder reactions: Labeling and theoretical cycloaromatization studies

Rodriguez, David,Navarro-Vazquez, Armando,Castedo, Luis,Dominguez, Domingo,Saa, Carlos

, p. 1938 - 1946 (2007/10/03)

A comprehensive theoretical and experimental investigation of dehydro Diels-Alder reactions examining the evolution of the cyclic allene intermediates under conditions for intramolecular and ionic and radical intermolecular cycloaromatization processes is

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