28016-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28016-65-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,1 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28016-65:
(7*2)+(6*8)+(5*0)+(4*1)+(3*6)+(2*6)+(1*5)=101
101 % 10 = 1
So 28016-65-1 is a valid CAS Registry Number.