99219-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99219-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,1 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99219-11:
(7*9)+(6*9)+(5*2)+(4*1)+(3*9)+(2*1)+(1*1)=161
161 % 10 = 1
So 99219-11-1 is a valid CAS Registry Number.