99298-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99298-55-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,9 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99298-55:
(7*9)+(6*9)+(5*2)+(4*9)+(3*8)+(2*5)+(1*5)=202
202 % 10 = 2
So 99298-55-2 is a valid CAS Registry Number.