219919-14-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219919-14-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,1 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 219919-14:
(8*2)+(7*1)+(6*9)+(5*9)+(4*1)+(3*9)+(2*1)+(1*4)=159
159 % 10 = 9
So 219919-14-9 is a valid CAS Registry Number.