5302-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5302-20-5 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 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 5302-20:
(6*5)+(5*3)+(4*0)+(3*2)+(2*2)+(1*0)=55
55 % 10 = 5
So 5302-20-5 is a valid CAS Registry Number.