1966-25-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1966-25-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,6 and 6 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1966-25:
(6*1)+(5*9)+(4*6)+(3*6)+(2*2)+(1*5)=102
102 % 10 = 2
So 1966-25-2 is a valid CAS Registry Number.