84280-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84280-91-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,8 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84280-91:
(7*8)+(6*4)+(5*2)+(4*8)+(3*0)+(2*9)+(1*1)=141
141 % 10 = 1
So 84280-91-1 is a valid CAS Registry Number.