80220-15-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80220-15-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,2 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 80220-15:
(7*8)+(6*0)+(5*2)+(4*2)+(3*0)+(2*1)+(1*5)=81
81 % 10 = 1
So 80220-15-1 is a valid CAS Registry Number.