16403-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16403-19-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,0 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16403-19:
(7*1)+(6*6)+(5*4)+(4*0)+(3*3)+(2*1)+(1*9)=83
83 % 10 = 3
So 16403-19-3 is a valid CAS Registry Number.