28440-64-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28440-64-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,4,4 and 0 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28440-64:
(7*2)+(6*8)+(5*4)+(4*4)+(3*0)+(2*6)+(1*4)=114
114 % 10 = 4
So 28440-64-4 is a valid CAS Registry Number.