189343-46-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189343-46-2 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, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 189343-46:
(8*1)+(7*8)+(6*9)+(5*3)+(4*4)+(3*3)+(2*4)+(1*6)=172
172 % 10 = 2
So 189343-46-2 is a valid CAS Registry Number.