431922-53-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431922-53-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,9,2 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 431922-53:
(8*4)+(7*3)+(6*1)+(5*9)+(4*2)+(3*2)+(2*5)+(1*3)=131
131 % 10 = 1
So 431922-53-1 is a valid CAS Registry Number.