57497-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57497-43-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,9 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 57497-43:
(7*5)+(6*7)+(5*4)+(4*9)+(3*7)+(2*4)+(1*3)=165
165 % 10 = 5
So 57497-43-5 is a valid CAS Registry Number.