1028256-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1028256-80-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,8,2,5 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1028256-80:
(9*1)+(8*0)+(7*2)+(6*8)+(5*2)+(4*5)+(3*6)+(2*8)+(1*0)=135
135 % 10 = 5
So 1028256-80-5 is a valid CAS Registry Number.