189164-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189164-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,1,6 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 189164-63:
(8*1)+(7*8)+(6*9)+(5*1)+(4*6)+(3*4)+(2*6)+(1*3)=174
174 % 10 = 4
So 189164-63-4 is a valid CAS Registry Number.