66497-19-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66497-19-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,9 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66497-19:
(7*6)+(6*6)+(5*4)+(4*9)+(3*7)+(2*1)+(1*9)=166
166 % 10 = 6
So 66497-19-6 is a valid CAS Registry Number.