UNSPSC 51433201: Ambrisentan

This classification denotes an endothelin-1 protein receptor antagonist and antihypertensive agent, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier HW6NV07QEC. European Medicines Agency schedules Ambrisentan in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB25424. Ambrisentan generally arises in the molecular formula C22H22N2O4.

The term AMBRISENTAN is an International Non-Proprietary Name or INN (see WHO INN reference publication, Volume 16., no. 1.2002, list 47.) Most nations schedule ambrisentan under HS 29335995 and SITC 51576. As of Q4 2014, AMBRISENTAN remains the US FDA Preferred Term for this commodity. Ambrisentan bears US NLM identifiers UMLS ID C1176329 and NCI Concept Code C72694. SMILES: O(C(C(Oc1nc(cc(n1)C)C)C(=O)O)(c1ccccc1)c1ccccc1)C.

UNSPSC 51433201 Ambrisentan is a Commodity code for a specific pharmaceutical active ingredient, but recent state and local procurement activity under this code does not reflect purchase of ambrisentan itself. Instead, the City of Tampa's Purchasing Department posted an IFB in April 2026 for Advanced Life Support Medications—a broader goods procurement sourcing four distinct emergency medical drugs (Labetalol HCI, Epinephrine, Adenosine, and Diltiazem) for Tampa Fire Rescue. The solicitation required vendors to supply specified unit quantities of vials and injections with nine-month minimum shelf life and delivery within ten calendar days of order. This mismatch between the code's nominal scope and actual procurement activity suggests the code may be misapplied in state and local taxonomy systems, or that ambrisentan itself sees limited direct procurement through these channels.

The sole recent opportunity supporting this code is the City of Tampa IFB (Solicitation 26P00188, due April 8, 2026, with an estimated contract value of $40,000.00) for emergency medications serving a municipal fire-rescue agency in Hillsborough County, Florida. The city designated the bid as sheltered market for Small Local Business Enterprises with a 5 percent discount cap of $10,000 and required Safety Data Sheets compliant with OSHA Hazard Communication Standards along with WCAG 2.2 Level AA accessibility conformance documentation. The contract term was one year from award with two optional one-year renewals and up to three additional 30-day unilateral extensions. No additional state or local jurisdictions or repeat buyers appear in the available records under this code.