663157-64-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663157-64-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,1,5 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 663157-64:
(8*6)+(7*6)+(6*3)+(5*1)+(4*5)+(3*7)+(2*6)+(1*4)=170
170 % 10 = 0
So 663157-64-0 is a valid CAS Registry Number.