872811-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 872811-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,2,8,1 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 872811-17:
(8*8)+(7*7)+(6*2)+(5*8)+(4*1)+(3*1)+(2*1)+(1*7)=181
181 % 10 = 1
So 872811-17-1 is a valid CAS Registry Number.