99845-54-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99845-54-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,4 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99845-54:
(7*9)+(6*9)+(5*8)+(4*4)+(3*5)+(2*5)+(1*4)=202
202 % 10 = 2
So 99845-54-2 is a valid CAS Registry Number.