65866-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65866-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,8,6 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 65866-91:
(7*6)+(6*5)+(5*8)+(4*6)+(3*6)+(2*9)+(1*1)=173
173 % 10 = 3
So 65866-91-3 is a valid CAS Registry Number.