663194-12-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663194-12-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,1,9 and 4 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 663194-12:
(8*6)+(7*6)+(6*3)+(5*1)+(4*9)+(3*4)+(2*1)+(1*2)=165
165 % 10 = 5
So 663194-12-5 is a valid CAS Registry Number.