1431523-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1431523-31-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,5,2 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1431523-31:
(9*1)+(8*4)+(7*3)+(6*1)+(5*5)+(4*2)+(3*3)+(2*3)+(1*1)=117
117 % 10 = 7
So 1431523-31-7 is a valid CAS Registry Number.
1431523-31-7Relevant articles and documents
Studies on cyclic ketones: Synthetic routes to indenopyridine, indenopyran, fluoreneoxime, pyrazoloindenotriazine and indenopyridazine derivatives
El-Taweel,Zaied
, p. 125 - 141 (2014/04/03)
Several new indenopyridine, indenopyran, fluorenoneoxime, indenopyridazine and pyroloindenotriazine derivatives were prepared using cyclic ketones (1), arylmethylenenitriles (2) and active methylene nitriles 3 as starting materials.
