80291-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80291-21-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,9 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80291-21:
(7*8)+(6*0)+(5*2)+(4*9)+(3*1)+(2*2)+(1*1)=110
110 % 10 = 0
So 80291-21-0 is a valid CAS Registry Number.