UNSPSC 51241305: Tannic acid

This classification denotes a polyphenol and industrial aid, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 28F9E0DJY6. European Medicines Agency schedules Tannic acid in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB15451MIG. Tannic acid generally arises in the molecular formula C76H52O46. The term 'tannic acid' is a European Pharmacopoeia designation. As of Q4 2014, TANNIC ACID remains the US FDA Preferred Term for this commodity.

Tannic acid bears US NLM identifiers UMLS ID C0039294 and NCI Concept Code C66579. SMILES: C1=C(C=C(C(=C1O)O)O)C(=O)OC2=CC(=CC(=C2O)O)C(=O)OCC3C(C(C(C(O3)OC(=O)C4=CC(=C(C(=C4)OC(=O)C5=CC(=C(C(=C5)O)O)O)O)O)OC(=O)C6=CC(=C(C(=C6)OC(=O)C7=CC(=C(C(=C7)O)O)O)O)O)OC(=O)C8=CC(=C(C(=C8)OC(=O)C9=CC(=C(C(=C9)O)O)O)O)O)OC(=O)C1=CC(=C(C(=C1)OC(=O)C1=CC(=C(C(=C1)O)O)O)O)O.

UNSPSC 51241305 Tannic acid, a Commodity code, does not align with the recent state and local solicitation activity posted under this classification. The nine most recent opportunities tagged to this code span forensic laboratory consumables (DNA analysis kits, genetic analyzer components, sequencing reagents, and drug-screening ELISA kits), diagnostic testing supplies (Shiga Toxin QuikChek kits), water treatment chemicals (caustic soda, calcium hypochlorite, sodium permanganate, aluminum sulfate, sodium fluoride, and phosphate blends), crime scene evidence collection and forensic supplies (DNA swabs, fingerprint kits, sharps containers, nitrile gloves, detergents, and petroleum ether), and laboratory precipitant solutions—none of which are tannic acid or closely related tanning agents. The code's nominal scope (tannic acid, a compound used in leather tanning, wine production, and specialty chemical applications) bears no relation to what state and local jurisdictions are actually procuring under this tag. The mismatch suggests the code has been misapplied to these opportunities in the source data.

Geographic spread across recent activity includes Texas (Texas Comptroller of Public Accounts statewide procurement; City of Arlington; Texas A&M University), the District of Columbia (Department of Forensic Sciences; Department of Finance and Services), California (State public health laboratory operations), Connecticut (City of Meriden), and Georgia (Gwinnett County). Issuing bodies span state procurement offices, municipalities, university systems, county governments, and special-purpose districts. Representative recent opportunities include the Texas Comptroller's IFB 304T27175A11 for proprietary forensic laboratory consumables and reagents due October 20, 2026; the City of Arlington's ITB 270018 for annual laboratory supplies and chemicals due September 17, 2026; and the City of Meriden's ITB B026-55 for water treatment chemicals (calcium hypochlorite, caustic soda, aluminum sulfate, sodium permanganate, sodium fluoride, and phosphate blends) due June 25, 2026. Given the consistent mismatch between the code's stated scope and active procurement activity, this code warrants revalidation with the source jurisdictions before pursuit decisions are made.