109186-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109186-97-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,8 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 109186-97:
(8*1)+(7*0)+(6*9)+(5*1)+(4*8)+(3*6)+(2*9)+(1*7)=142
142 % 10 = 2
So 109186-97-2 is a valid CAS Registry Number.