4057-32-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4057-32-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,5 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4057-32:
(6*4)+(5*0)+(4*5)+(3*7)+(2*3)+(1*2)=73
73 % 10 = 3
So 4057-32-3 is a valid CAS Registry Number.