UNSPSC 51191946: Thiamine mononitrate

This classification denotes a b vitamin with the molecular formula C12H17N4OS.NO3, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 8K0I04919X, chemically known as 3-(4-amino-2-methylpyrimidyl-5-methyl)-4-methyl-5,beta-hydroxyethylthiazolium nitrate but more generally known as thiamine mononitrate, which bears US NIH Compound Identifier 10762. European Medicines Agency schedules Thiamine mononitrate in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB15528MIG.

Most nations, for tariff and trade purposes, schedule thiamine mononitrate under HS 29362200 and SITC 54113. As of Q4 2014, THIAMINE MONONITRATE remains US FDA's Preferred Term for this commodity. Thiamine mononitrate bears US NLM identifiers UMLS ID C0039844 and NCI Concept Code C87669. SMILES: CC1C(SC[N+]1CC2CNC(NC2N)C)CCO.[N+](=O)([O-])[O-].

UNSPSC 51191946 Thiamine mononitrate is a Commodity code that in recent state and local procurement activity encompasses pharmaceutical and chemical supply for specialized healthcare, correctional, and municipal water treatment operations. The three recent opportunities posted under or aligned with this code show a significant scope mismatch: the code's nominal name refers to a specific B-vitamin compound, but the actual solicitations target parenteral nutrition solutions and intravenous products for incarcerated individuals, wastewater valve components and repair services, and sodium bisulfite for municipal water treatment. State and local issuers using this code include state departments of corrections, county purchasing offices, and municipal utilities. The Washington State Department of Corrections and the City of Meriden appear as repeat procurement drivers, with DOC managing multi-facility healthcare logistics across eight correctional facilities statewide and Meriden operating ongoing chemical supply contracts for water pollution control.

Recent activity spans Washington state, Florida, and Connecticut. The Washington State Department of Corrections issued an RFQQ for parenteral products, services, and equipment on September 8, 2026, with bids due October 7, 2026 at 4:00 PM PST, seeking parenteral nutrition solutions and intravenous products for delivery across eight facilities in three regions with 24-hour turnaround requirements and initial contract term through June 30, 2030; DOC anticipates selecting multiple contractors and may award up to three bidders per region, with set-aside goals for small, minority-owned, women-owned, and veteran-owned businesses. Broward County, Florida issued a Request for Information on September 18, 2026 (responses due September 29, 2026) regarding DeZurik/APCO valves, parts, and repair services for wastewater facilities, seeking to identify alternatives to the current sole-source provider Controls Specialties, Inc. The City of Meriden solicited bids for sodium bisulfite chemical supply under solicitation B027-15 posted August 14, 2026 with a due date of July 29, 2026. The code shows limited activity and significant scope confusion between the commodity's nominal name and actual state and local demand.