6810--Isotopes Ca-43 and Ca-44

Active

Contract Opportunity

PRE-SOLICITATION NOTICE OF INTENT TO SOLE SOURCE

Department of Veterans Affairs (VA) Network Contracting Office (NCO 21) intends to award a sole
source, firm-fixed-price contract to Trace Sciences for Calcium Isotopes Ca-43 and Ca-44. The procurement is on behalf of the Department of Veterans Affairs, Veterans Health Administration, Regional Procurement Office West (RPOW), Network Contracting Office (NCO) 21, on behalf of SAN FRANCISCO VA MEDICAL CENTER.

The specific items required are as follows:

ITEM NUMBER
DESCRIPTION OF SUPPLIES/SERVICES
QUANTITY
UNIT

0001

610.00
MG
Calcium 44 stable isotope, 99%+ enrichment, in carbonate form
PRINCIPAL NAICS CODE: 325180 - Other Basic Inorganic Chemical Manufacturing
PRODUCT/SERVICE CODE: 6810 - Chemicals
MANUFACTURER PART NUMBER (MPN): Ca44
LOCAL STOCK NUMBER: Ca44

0002

40.00
MG
Calcium 43 stable isotope, 86%+ enrichment, in carbonate form
PRINCIPAL NAICS CODE: 325180 - Other Basic Inorganic Chemical Manufacturing
PRODUCT/SERVICE CODE: 6810 - Chemicals
MANUFACTURER PART NUMBER (MPN): Ca43
LOCAL STOCK NUMBER: Ca43

VA s Gray Market Items terms and conditions apply pursuant to VAAR 852.212-71 Gray Market Items and VAAR 852.212-72 Gray Market and Counterfeit Items. As a result, the vendor shall be an OEM, authorized dealer, authorized distributor, or authorized reseller for the items identified to be eligible for participation in this acquisition. The vendor must be able to provide the documentation that demonstrates such aforementioned authority.
The solicitation for this action will be posted to SAM.GOV, and all responsible sources may submit a capability statement, proposal, or quotation, which shall be considered by the agency. After consideration, the Government will determine whether to proceed with the sole source acquisition. Please keep in mind that patient care and choice in the decision is the highest priority to the VA. The solicitation will be posted on or about February 4, 2026.
Please respond to Shelley.Self2@va.gov no later than Thursday, February 5, 2026, at 12:00 pm Pacific time. With your response, please provide evidence showing compliance with the aforementioned Gray Market clauses. Failure to provide the required information may result in a determination that your company is not a viable source.

(End of Notice)

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