UNSPSC 51172124: Difenoximide or difenoximide hydrochloride

This classification denotes an antispasmotic agent with the molecular formulas C32H31N3O4 and C32H31N3O4.ClH, preparations that US FDA regulates as active ingredients or moieties under Unique Ingredient Identifiers 8UG1323C03 and 6GEY4W769K, the base compound being chemically known as 4-(((2,5-dioxo-1-pyrrolidinyl)oxy)carbonyl)-alpha,alpha,4-triphenyl-1-piperidinebutanenitrile but generally known as difenoximide, which bears US NIH Compound Identifier 39481.

UNSPSC 51172124 Difenoximide or difenoximide hydrochloride is a Commodity code with minimal recent state and local procurement activity. The single recent solicitation in the source—Collin County Community Supervision and Corrections Department's RFP 2026-327 for offender specimen collection and drug testing services—does not align with the code's nominal scope of a specific pharmaceutical ingredient. The RFP solicits comprehensive drug testing services including lab operations, staffing, screening and confirmation testing using immunoassay and chromatographic methods, oral fluid and hair testing, and electronic result reporting, not procurement of difenoximide as a chemical reagent or drug-testing component. The mismatch suggests either miscoding by the issuing body or a narrow application of the chemical that the recent-opportunities record does not clarify.

The single opportunity is issued by Collin County (Texas), a county corrections and community supervision agency, with an estimated contract value of $600,000 over two years commencing September 1, 2026, plus three optional one-year renewals. Collin County issued the RFP on September 25, 2026, with proposals due July 23, 2026 at 2:00 p.m.; the anticipated award date is August 10, 2026. The county may award in whole or in part to multiple vendors. Evaluation scoring weighs vendor understanding (30 points), firm qualifications (25 points), client references (15 points), and cost (30 points), with optional Phase 2 demonstrations and interviews worth up to 30 points. The code shows no relevant recent activity beyond this single mismatched solicitation.