3920-13-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3920-13-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,2 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3920-13:
(6*3)+(5*9)+(4*2)+(3*0)+(2*1)+(1*3)=76
76 % 10 = 6
So 3920-13-6 is a valid CAS Registry Number.