7320-82-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7320-82-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,2 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7320-82:
(6*7)+(5*3)+(4*2)+(3*0)+(2*8)+(1*2)=83
83 % 10 = 3
So 7320-82-3 is a valid CAS Registry Number.