66191-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66191-79-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,1,9 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66191-79:
(7*6)+(6*6)+(5*1)+(4*9)+(3*1)+(2*7)+(1*9)=145
145 % 10 = 5
So 66191-79-5 is a valid CAS Registry Number.