19209-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19209-12-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,2,0 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19209-12:
(7*1)+(6*9)+(5*2)+(4*0)+(3*9)+(2*1)+(1*2)=102
102 % 10 = 2
So 19209-12-2 is a valid CAS Registry Number.