UNSPSC 51192018: Allopurinol riboside

This classification denotes a xanthine oxidase inhibitor and uricosuric agent with the molecular formula C10H12N4O5, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier WZS8452SEC, chemically known as 4h-pyrazolo(3,4-d)pyrimidin-4-one, 1,5-dihydro-1-.beta.-d-ribofuranosyl-, but more generally known as allopurinol riboside, which bears US NIH Compound Identifier 85337. European Medicines Agency schedules allopurinol riboside or its base in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB05338MIG.

Most nations, for tariff purposes, schedule allopurinol riboside under HS 29335995. SMILES: C1C2C(=O)[NH]CNC2N(N1)[C@H]3[C@@H]([C@@H]([C@H](O3)CO)O)O.

UNSPSC 51192018 Allopurinol riboside is a Commodity code for a specific pharmaceutical compound, yet recent state and local procurement activity under this code shows no relevance to the nominal product scope. The three most recent opportunities tagged to this code—athletic training services for fire and police departments, medical aid supplies for emergency response, and a request for information on direct-to-manufacturer prescription programs—do not involve allopurinol riboside or any pharmaceutical ingredient matching the code's definition. The mismatch suggests either a cataloging error in the underlying procurement system or a broad, non-specific tagging convention that obscures the actual commodity being purchased.

The geographic spread of the limited recent activity spans Texas (Texas Health and Human Services Commission RFI posted April 3, 2026), Arizona (City of Tucson RFP for athletic training services posted May 13, 2026, due June 9, 2026), and Florida (City of Tampa ITB for medical aid supplies posted April 24, 2026, due April 9, 2025). No issuing body has posted a solicitation under this code that requests allopurinol riboside or a chemically equivalent product. State and local buyers evaluating this code should not rely on it for pharmaceutical procurement categorization; the code's practical utility under current state and local tagging practices is unclear.