28660-28-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28660-28-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,6,6 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28660-28:
(7*2)+(6*8)+(5*6)+(4*6)+(3*0)+(2*2)+(1*8)=128
128 % 10 = 8
So 28660-28-8 is a valid CAS Registry Number.