83558-45-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83558-45-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,5 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83558-45:
(7*8)+(6*3)+(5*5)+(4*5)+(3*8)+(2*4)+(1*5)=156
156 % 10 = 6
So 83558-45-6 is a valid CAS Registry Number.