UNSPSC 51171721: Difenoxin hydrochloride

Commodity

Code facts

NIGP codes
1

UNSPSC codes and definitions come from the UN Development Programme (managed by GS1 US), and state and local contract opportunities from the governments' procurement sites.

NIGP codes for 51171721

Definition

This classification denotes an antidiarrheal agent with the molecular formula C28H28N2O2.ClH, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier VQZ63K01IW, chemically known as 4-piperidinecarboxylic acid, 1-(3-cyano-3,3-diphenylpropyl)-4-phenyl-, monohydrochloride but more generally known as difenoxin hydrochloride, which bears US NIH Compound Identifier 37193. European Medicines Agency schedules Difenoxin hydrochloride in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB01691MIG.

Read the full definition

Most nations, for tariff and trade purposes, schedule difenoxin hydrochloride under HS 29333300 and SITC 51574. As of Q4 2014, DIFENOXIN HYDROCHLORIDE remains US FDA's Preferred Term for this commodity. Difenoxin hydrochloride bears US NLM identifiers UMLS ID C0770333 and NCI Concept Code C47487. SMILES: C1CCC(CC1)C2(CCN(CC2)CCC(C#N)(C3CCCCC3)C4CCCCC4)C(=O)O.CL.

About UNSPSC 51171721

UNSPSC 51171721 Difenoxin hydrochloride, a Commodity code, shows limited direct procurement activity at the state and local level based on recent solicitations. The single tracked recent opportunity—Collin County Community Supervision and Corrections Department's RFP 2026-327 for offender specimen collection and drug testing services—does not name difenoxin as a specified substance or requirement. The RFP scope centers on staffing collection sites, operating notification systems, and performing immunoassay screening with confirmatory analysis (LC/MS/MS or GC/MS) across five-panel, six-panel, and ancillary tests, but does not identify difenoxin hydrochloride or any specific drug or metabolite being tested for. State and local procurement under this code appears sparse or misaligned with the nominal pharmaceutical substance classification.

Collin County, Texas, posted the RFP on September 25, 2026, with a response deadline of July 23, 2026 (an inconsistency in the source). The contract carries an estimated value of $600,000 over a two-year initial term plus up to three optional one-year renewals, funded through Texas Department of Criminal Justice-Community Justice Assistance Division appropriations. Vendors must hold SAMHSA, Texas DPS, or CAP lab certification and submit pricing on a per-test basis across three service models (screening only, confirmation, or screening with automatic confirmation). The anticipated award date is August 10, 2026. Without additional recent solicitations explicitly tied to this pharmaceutical substance, the code shows little current activity for pursuit.

Quick answers

What is UNSPSC 51171721?

UNSPSC 51171721 is Difenoxin hydrochloride, a commodity in UNSPSC 51000000, Pharmaceutical Products incl. Contraceptives and Vaccines.

Which NIGP codes match UNSPSC 51171721?

UNSPSC 51171721 maps to 1 NIGP code, 26956 Gastrointestinal Drugs.

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