99924-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99924-97-7 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, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99924-97:
(7*9)+(6*9)+(5*9)+(4*2)+(3*4)+(2*9)+(1*7)=207
207 % 10 = 7
So 99924-97-7 is a valid CAS Registry Number.