109125-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109125-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,2 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109125-20:
(8*1)+(7*0)+(6*9)+(5*1)+(4*2)+(3*5)+(2*2)+(1*0)=94
94 % 10 = 4
So 109125-20-4 is a valid CAS Registry Number.