109185-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109185-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,8 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109185-50:
(8*1)+(7*0)+(6*9)+(5*1)+(4*8)+(3*5)+(2*5)+(1*0)=124
124 % 10 = 4
So 109185-50-4 is a valid CAS Registry Number.