4348-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4348-20-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,4 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4348-20:
(6*4)+(5*3)+(4*4)+(3*8)+(2*2)+(1*0)=83
83 % 10 = 3
So 4348-20-3 is a valid CAS Registry Number.