90558-43-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90558-43-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,5,5 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90558-43:
(7*9)+(6*0)+(5*5)+(4*5)+(3*8)+(2*4)+(1*3)=143
143 % 10 = 3
So 90558-43-3 is a valid CAS Registry Number.