810-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 810-05-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 810-05:
(5*8)+(4*1)+(3*0)+(2*0)+(1*5)=49
49 % 10 = 9
So 810-05-9 is a valid CAS Registry Number.