20448-28-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20448-28-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,4 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20448-28:
(7*2)+(6*0)+(5*4)+(4*4)+(3*8)+(2*2)+(1*8)=86
86 % 10 = 6
So 20448-28-6 is a valid CAS Registry Number.