165403-04-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165403-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,4,0 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 165403-04:
(8*1)+(7*6)+(6*5)+(5*4)+(4*0)+(3*3)+(2*0)+(1*4)=113
113 % 10 = 3
So 165403-04-3 is a valid CAS Registry Number.