819-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 819-44-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 819-44:
(5*8)+(4*1)+(3*9)+(2*4)+(1*4)=83
83 % 10 = 3
So 819-44-3 is a valid CAS Registry Number.