16964-04-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16964-04-8 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 4 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 16964-04:
(7*1)+(6*6)+(5*9)+(4*6)+(3*4)+(2*0)+(1*4)=128
128 % 10 = 8
So 16964-04-8 is a valid CAS Registry Number.