855408-66-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 855408-66-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,4,0 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 855408-66:
(8*8)+(7*5)+(6*5)+(5*4)+(4*0)+(3*8)+(2*6)+(1*6)=191
191 % 10 = 1
So 855408-66-1 is a valid CAS Registry Number.