20597-44-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20597-44-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,9 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20597-44:
(7*2)+(6*0)+(5*5)+(4*9)+(3*7)+(2*4)+(1*4)=108
108 % 10 = 8
So 20597-44-8 is a valid CAS Registry Number.