656235-64-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 656235-64-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,3 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 656235-64:
(8*6)+(7*5)+(6*6)+(5*2)+(4*3)+(3*5)+(2*6)+(1*4)=172
172 % 10 = 2
So 656235-64-2 is a valid CAS Registry Number.