320-39-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 320-39-8 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, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 320-39:
(5*3)+(4*2)+(3*0)+(2*3)+(1*9)=38
38 % 10 = 8
So 320-39-8 is a valid CAS Registry Number.