53002-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53002-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,0,0 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 53002-20:
(7*5)+(6*3)+(5*0)+(4*0)+(3*2)+(2*2)+(1*0)=63
63 % 10 = 3
So 53002-20-3 is a valid CAS Registry Number.