109865-78-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109865-78-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,6 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109865-78:
(8*1)+(7*0)+(6*9)+(5*8)+(4*6)+(3*5)+(2*7)+(1*8)=163
163 % 10 = 3
So 109865-78-3 is a valid CAS Registry Number.