5304-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5304-39-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,3,0 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5304-39:
(6*5)+(5*3)+(4*0)+(3*4)+(2*3)+(1*9)=72
72 % 10 = 2
So 5304-39-2 is a valid CAS Registry Number.