163489-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163489-64-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,4,8 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 163489-64:
(8*1)+(7*6)+(6*3)+(5*4)+(4*8)+(3*9)+(2*6)+(1*4)=163
163 % 10 = 3
So 163489-64-3 is a valid CAS Registry Number.