Patents Assigned to Randox Laboratories
  • Phenethanolamine-derived haptens, immunogens, antibodies and conjugates
    Patent number: 7192722
    Abstract: The present invention relates to a method for preparing haptens of formulae I and II that are useful in the preparation of immunogens, antibodies and conjugates, for use in competitive immunoassays for the detection of ractopamine, isoxsuprine and ritodrine. The haptens are prepared by reacting a phenylethanolamine derivative of formula D with a phenylalkylcarbonyl derivative of formula E: in which, in formula I, Z1 is a crosslinker and Z2 is H and, in formula II, Z1 is H and Z2 is a crosslinker.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: March 20, 2007
    Assignee: Randox Laboratories
    Inventors: Robert Ivan McConnell, Stephen Peter Fitzgerald, El Ouard Benchikh, Andrew Philip Lowry