663217-95-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663217-95-6 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 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 663217-95:
(8*6)+(7*6)+(6*3)+(5*2)+(4*1)+(3*7)+(2*9)+(1*5)=166
166 % 10 = 6
So 663217-95-6 is a valid CAS Registry Number.