3920-99-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3920-99-8 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, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3920-99:
(6*3)+(5*9)+(4*2)+(3*0)+(2*9)+(1*9)=98
98 % 10 = 8
So 3920-99-8 is a valid CAS Registry Number.