663218-15-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663218-15-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,2,1 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 663218-15:
(8*6)+(7*6)+(6*3)+(5*2)+(4*1)+(3*8)+(2*1)+(1*5)=153
153 % 10 = 3
So 663218-15-3 is a valid CAS Registry Number.