219924-11-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219924-11-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,2 and 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 219924-11:
(8*2)+(7*1)+(6*9)+(5*9)+(4*2)+(3*4)+(2*1)+(1*1)=145
145 % 10 = 5
So 219924-11-5 is a valid CAS Registry Number.