209112-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209112-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,1,1 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 209112-98:
(8*2)+(7*0)+(6*9)+(5*1)+(4*1)+(3*2)+(2*9)+(1*8)=111
111 % 10 = 1
So 209112-98-1 is a valid CAS Registry Number.