UNSPSC 51171701: Difenoxin

This classification denotes an antidiarrheal agent with the molecular formula C28H28N2O2, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 3ZZ5BJ9F2Q, chemically known as 4-piperidinecarboxylic acid, 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl- but generally known as difenoxin, which bears US NIH Compound Identifier 34328. European Medicines Agency schedules Difenoxin in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB07123MIG.

UNSPSC 51171701 Difenoxin is a Commodity-tier code that maps to state and local procurement for drug-testing pharmaceutical supplies and related specimen-collection services. Recent activity under this code reflects procurement of offender drug-testing programs — including staffed specimen collection sites, immunoassay screening with confirmatory testing (LC/MS/MS or GC/MS), alternative testing modalities such as oral fluid and hair analysis, and associated laboratory and electronic reporting services. The buying bodies are correctional and community-supervision agencies at the county level, which operate these programs under statutory or departmental mandates. Vendors must hold SAMHSA, state DPS, or CAP laboratory certifications and are expected to staff collection facilities during extended business hours and selected weekend hours, operate randomized testing notification systems, and deliver results electronically with pricing structured on a per-test basis.

Collin County Community Supervision and Corrections Department in Texas posted the most recent and primary visible opportunity under this code: an RFP (2026-327) for offender specimen collection and drug testing services with an estimated contract value of $600,000 and an anticipated award date of August 10, 2026. The scope includes staffing two collection sites in Plano and McKinney with approximately 25,031 annual tests across five-panel and six-panel screens, plus ancillary and alternative testing. The contract term runs two years from September 1, 2026, with three optional one-year renewals. Collin County will evaluate proposals on vendor understanding and qualifications (55 points combined), client references (15 points), cost (30 points), and optional demonstrations and interviews (up to 30 points). Pricing must include all freight, delivery, insurance, and staffing with no surcharges; annual price redetermination is capped at 3.0 percent and tied to Consumer Price Index increases on September 1 anniversaries.