UNSPSC 51283515: Nafcillin sodium monohydrate

This classification denotes a beta-lactam antibiotic with the molecular formula C21H21N2O5S.Na.H2O, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 49G3001BCK, chemically known as monosodium (2s,5r,6r)-6-(2-ethoxy-1-naphthamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate monohydrate, but more generally known as nafcillin sodium monohydrate, which bears US NIH Compound Identifier 5282391.

European Medicines Agency schedules nafcillin sodium monohydrate or its base in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB09118MIG. Most nations, for tariff purposes, schedule nafcillin sodium monohydrate under HS 29411090. SMILES: CCOC1CCC2CCCCC2C1C(=O)N[C@H]3[C@@H]4N(C3=O)[C@H](C(S4)(C)C)C(=O)[O-].O.[NA+].

UNSPSC 51283515 Nafcillin sodium monohydrate is a Commodity code representing a specific antibiotic pharmaceutical product that state and local health agencies procure through cooperative purchasing vehicles and competitive bidding. The recent record shows minimal direct solicitation activity specifically for nafcillin sodium monohydrate; the available opportunities are tagged under this code but do not reflect procurement of nafcillin itself. State and local health departments, particularly through cooperative purchasing consortia, use pharmaceutical commodity codes to manage inventory and supply agreements across multiple jurisdictions. When state and local agencies do solicit under narrow pharmaceutical codes like this one, they typically use piggyback agreements (which allow agencies to purchase under another entity's awarded contract) or invitation-for-bid processes that bundle multiple drug products and allow vendors to compete on price and delivery terms.

The Illinois Department of Public Health awarded a piggyback pharmaceutical warehouse contract to Chartwell Rx LLC on August 28, 2026, through the MMCAP Infuse consortium for $2,999,999.11 over three years (Bid Number 26-482DPH-PREPD-B-53392), though the contract supplied Doxycycline Hyclate and Ciprofloxacin Hydrochloride rather than nafcillin sodium monohydrate. Seminole County, Florida, released an Invitation for Bid on June 30, 2026 (IFB 60459723LAS) for 1,900 units of Naloxone and 800 Safe Drug Deactivation Systems annually with quarterly deliveries to the Seminole County Community Health Building in Sanford. Recent activity centers on state health departments and county health authorities in Florida and Illinois, though the geographic footprint is too narrow to establish a clear pattern. No open solicitations specifically for nafcillin sodium monohydrate appear in the source, and the tagged opportunities reflect different pharmaceutical products, suggesting this Commodity code sees limited direct state and local procurement activity or that agencies tag related pharmaceutical buys without precision.