16966-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16966-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,6 and 6 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 16966-04:
(7*1)+(6*6)+(5*9)+(4*6)+(3*6)+(2*0)+(1*4)=134
134 % 10 = 4
So 16966-04-4 is a valid CAS Registry Number.