--Intent to award sole source.

Under the authority of FAR 6.302-1, it is the Government's intent to award a sole source to Cambridge Isotope Laboratories, Inc., 50 Frontage Road, Andover, MA 01810-5413 for the purchase of the following isotopes: Alpha-Ketoisocaproic acid, sodium salt (1-13C, 99%) sterility/pyrogeniticity tested, Alpha-Ketoisocaproic acid, sodium salt (methyl-D3, 98%) sterility/pyrogeniticity tested, L-Phenylalanine (1-13C, 99%) sterility/pyrogeniticity tested, and L-Phenylalanine (Ring-D5, 98%) sterility/pyrogeniticity tested, to ensure continuity and consistency in on-going studies. This is not a formal solicitation. This synopsis is not considered a Request for Quotation or Proposal. No solicitation document is available and telephone requests will not be honored. No contract will be awarded on the basis of offers received in response to this notice. All responsible sources may submit a capability statement, proposal, or quotation, which shall be considered by the agency. If no challenges to acquire these items are received by 9:00 am, EST, 31 May 2008, the government reserves the right to execute an award without publishing a solicitation. A determination by the Government not to compete this proposed contract based on this notice is solely within the discretion of the Government. Detailed capabilities must be submitted to [email protected] no later than time and date noted above.