99924-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99924-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,2 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 99924-49:
(7*9)+(6*9)+(5*9)+(4*2)+(3*4)+(2*4)+(1*9)=199
199 % 10 = 9
So 99924-49-9 is a valid CAS Registry Number.