320-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 320-52-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,2 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 320-52:
(5*3)+(4*2)+(3*0)+(2*5)+(1*2)=35
35 % 10 = 5
So 320-52-5 is a valid CAS Registry Number.