54943-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54943-97-4 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 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54943-97:
(7*5)+(6*4)+(5*9)+(4*4)+(3*3)+(2*9)+(1*7)=154
154 % 10 = 4
So 54943-97-4 is a valid CAS Registry Number.