558441-43-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 558441-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,8,4,4 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 558441-43:
(8*5)+(7*5)+(6*8)+(5*4)+(4*4)+(3*1)+(2*4)+(1*3)=173
173 % 10 = 3
So 558441-43-3 is a valid CAS Registry Number.