872811-22-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 872811-22-8 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, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 872811-22:
(8*8)+(7*7)+(6*2)+(5*8)+(4*1)+(3*1)+(2*2)+(1*2)=178
178 % 10 = 8
So 872811-22-8 is a valid CAS Registry Number.