83549-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83549-85-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,4 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83549-85:
(7*8)+(6*3)+(5*5)+(4*4)+(3*9)+(2*8)+(1*5)=163
163 % 10 = 3
So 83549-85-3 is a valid CAS Registry Number.