1320-04-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1320-04-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,2 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1320-04:
(6*1)+(5*3)+(4*2)+(3*0)+(2*0)+(1*4)=33
33 % 10 = 3
So 1320-04-3 is a valid CAS Registry Number.