191668-79-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191668-79-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,6,6 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 191668-79:
(8*1)+(7*9)+(6*1)+(5*6)+(4*6)+(3*8)+(2*7)+(1*9)=178
178 % 10 = 8
So 191668-79-8 is a valid CAS Registry Number.