UNSPSC 51201564: Sodium aurothiosulfate or sodium aurotiosulfate

This classification denotes an antirheumatic agent with the molecular formula Au.3Na.2O3S2.2H2O, a preparation that US FDA recognizes as an active ingredient or moiety under Unique Ingredient Identifier CKS1YQ9W1J, chemically known as aurate(3-), bis(monothiosulfato)-, trisodium but more generally known as sodium aurothiosulfate or gold sodium thiosulfate, which bears US NIH Compound Identifier 27176. SMILES: OS(=O)(=O)[S-].OS(=O)(=O)[S-].[Na+].[Na+].[Na+].[Au].

UNSPSC 51201564 Sodium aurothiosulfate or sodium aurotiosulfate is a Commodity code that shows no relevant recent state and local procurement activity. The three most recent opportunities tagged under this code—athletic training services for the City of Tucson Fire and Police Departments (RFP 260163, due June 9, 2026), medical aid supplies for the City of Tampa Fire Rescue Department (ITB 25P00157), and a Request for Information from the Texas Health and Human Services Commission regarding direct-to-manufacturer pharmacy prescriptions (RFI HHS0017013)—involve personnel services, first-aid consumables, and pharmacy benefit management, respectively, none of which relate to sodium aurothiosulfate or its pharmaceutical applications. The code appears to be a specialty pharmaceutical chemical with limited procurement relevance in state and local government contracting, and the misalignment between the code's nominal scope and the opportunities tagged to it suggests either classification error or dormancy in this particular commodity area within the state and local market.

No state and local jurisdictions are actively soliciting sodium aurothiosulfate under this code as of the most recent opportunity records. Business development professionals should verify whether this code is actively used within their target state or local markets before investing pursuit effort; the recent tagging of unrelated opportunities suggests that this commodity may not be a regular procurement category for state, county, municipal, school, or transit agencies.