854903-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 854903-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,4,9,0 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 854903-28:
(8*8)+(7*5)+(6*4)+(5*9)+(4*0)+(3*3)+(2*2)+(1*8)=189
189 % 10 = 9
So 854903-28-9 is a valid CAS Registry Number.