4920-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4920-39-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,2 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4920-39:
(6*4)+(5*9)+(4*2)+(3*0)+(2*3)+(1*9)=92
92 % 10 = 2
So 4920-39-2 is a valid CAS Registry Number.