249920-24-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 249920-24-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,9,9,2 and 0 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 249920-24:
(8*2)+(7*4)+(6*9)+(5*9)+(4*2)+(3*0)+(2*2)+(1*4)=159
159 % 10 = 9
So 249920-24-9 is a valid CAS Registry Number.