854907-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 854907-91-8 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 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 854907-91:
(8*8)+(7*5)+(6*4)+(5*9)+(4*0)+(3*7)+(2*9)+(1*1)=208
208 % 10 = 8
So 854907-91-8 is a valid CAS Registry Number.