189343-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189343-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,3,4 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 189343-05:
(8*1)+(7*8)+(6*9)+(5*3)+(4*4)+(3*3)+(2*0)+(1*5)=163
163 % 10 = 3
So 189343-05-3 is a valid CAS Registry Number.