54945-99-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54945-99-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,9,4 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54945-99:
(7*5)+(6*4)+(5*9)+(4*4)+(3*5)+(2*9)+(1*9)=162
162 % 10 = 2
So 54945-99-2 is a valid CAS Registry Number.