220983-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220983-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,9,8 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 220983-31:
(8*2)+(7*2)+(6*0)+(5*9)+(4*8)+(3*3)+(2*3)+(1*1)=123
123 % 10 = 3
So 220983-31-3 is a valid CAS Registry Number.