UNSPSC 51101923: Atovaquone

This classification denotes an antimalarial and anti-infective agent with the molecular formula C22H19ClO3, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier Y883P1Z2LT, chemically known as 1,4-naphthalenedione, 2-(4-(4-chlorophenyl)cyclohexyl)-3-hydroxy- but generally known as atovaquone, which bears US NIH Compound Identifier 74989. Atovaquone most often comes in base form and is sometimes combined with proguanil.

UNSPSC 51101923 Atovaquone (Commodity tier) represents pharmaceutical products sourced by state and local health departments and county public health agencies, though the recent opportunities in this code's posting history show a mismatch between the code's nominal scope and actual procurement activity. The two most recent opportunities tagged to this code involve antibiotics (Doxycycline Hyclate and Ciprofloxacin Hydrochloride) and emergency-response pharmaceutical supplies (Naloxone and drug deactivation systems) rather than Atovaquone itself, indicating either miscoding in the source systems or misclassification by issuing bodies unfamiliar with UNSPSC precision. State and local health agencies—typically state departments of public health and county community health divisions—are the primary buyers, sourcing through both standalone competitive bids and cooperative purchasing vehicles such as MMCAP Infuse consortiums. Quantities range from small annual orders (1,900 units in one instance) to multi-year contracts in the multi-million-dollar range.

Recent activity concentrates in Illinois and Florida. The Illinois Department of Public Health awarded a $2,999,999.11 multi-year pharmaceutical warehouse piggyback contract through MMCAP Infuse to Chartwell Rx LLC in August 2026 (IFB 26-482DPH-PREPD-B-53392, closed award), while Seminole County, Florida released an IFB in June 2026 (IFB60459723LAS, due July 26, 2026) for 1,900 annual units of Naloxone and 800 Safe Drug Deactivation Systems with quarterly deliveries and potential FEMA funding and associated federal compliance requirements. Neither opportunity explicitly required set-asides or preferences. Given the code-product divergence, verify internal UNSPSC classification before investing in this code as a target—the actual buying activity may sit in adjacent pharmaceutical or emergency-response commodity codes.