811436-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 811436-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,1,4,3 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 811436-73:
(8*8)+(7*1)+(6*1)+(5*4)+(4*3)+(3*6)+(2*7)+(1*3)=144
144 % 10 = 4
So 811436-73-4 is a valid CAS Registry Number.