109399-94-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109399-94-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,9 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109399-94:
(8*1)+(7*0)+(6*9)+(5*3)+(4*9)+(3*9)+(2*9)+(1*4)=162
162 % 10 = 2
So 109399-94-2 is a valid CAS Registry Number.