UNSPSC 51172137: Metaxalone

This classification denotes a muscle relaxant with the molecular formula C12H15NO3, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 1NMA9J598Y, chemically known as 5-((3,5-xylyloxy)methyl)-2-oxazolidinone but generally known as metaxalone, which bears US NIH Compound Identifier 15459. European Medicines Agency schedules Metaxalone in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB08817MIG. The term METAXALONE is an International Non-Proprietary Name.

UNSPSC 51172137 Metaxalone is a Commodity code that, based on recent state and local procurement activity, does not align with purchases of the pharmaceutical compound itself. Instead, the code appears in the context of drug-testing services procurement, where metaxalone or related controlled substances may feature as part of a broader laboratory testing panel. State and local governments soliciting under this code are acquiring offender drug-testing and specimen-collection services, including immunoassay screening, confirmation testing via LC/MS/MS or GC/MS, and alternative methodologies such as oral fluid and hair analysis. Issuing bodies include county supervision and corrections departments operating community-justice programs; Collin County Community Supervision and Corrections Department is the primary identified buyer in recent activity.

Collin County Community Supervision and Corrections Department posted RFP 2026-327 on September 25, 2026, for offender specimen collection and drug testing services, with an estimated contract value of $600,000 and a contract term of two years commencing September 1, 2026, with three optional one-year renewal periods. The scope encompasses staffing two collection sites in Plano and McKinney with immunoassay and confirmatory laboratory testing, annual demand of approximately 25,031 tests, and electronic result reporting. The successful vendor must maintain lab certification from SAMHSA, TX DPS, or CAP, with pricing submitted on a per-test basis across three service models. The anticipated award date was August 10, 2026. Texas represents the geographic center of recent activity under this code.