320-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 320-17-2 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, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 320-17:
(5*3)+(4*2)+(3*0)+(2*1)+(1*7)=32
32 % 10 = 2
So 320-17-2 is a valid CAS Registry Number.