20984-31-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20984-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,8 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20984-31:
(7*2)+(6*0)+(5*9)+(4*8)+(3*4)+(2*3)+(1*1)=110
110 % 10 = 0
So 20984-31-0 is a valid CAS Registry Number.