32304-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 32304-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,3,0 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 32304-20:
(7*3)+(6*2)+(5*3)+(4*0)+(3*4)+(2*2)+(1*0)=64
64 % 10 = 4
So 32304-20-4 is a valid CAS Registry Number.