854909-99-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 854909-99-2 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 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 854909-99:
(8*8)+(7*5)+(6*4)+(5*9)+(4*0)+(3*9)+(2*9)+(1*9)=222
222 % 10 = 2
So 854909-99-2 is a valid CAS Registry Number.