20302-89-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20302-89-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,0 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20302-89:
(7*2)+(6*0)+(5*3)+(4*0)+(3*2)+(2*8)+(1*9)=60
60 % 10 = 0
So 20302-89-0 is a valid CAS Registry Number.