UNSPSC 51191917: Ferrous sulfate

This classification denotes a nutritional supplement with the molecular formula FeO4S; a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 2IDP3X9OUD; chemically known as vanadium sulfate; vso4 but generally known as ferrous sulfate; which bears US National Institutes of Health Compound Identifier 1118 European Medicines Agency schedules Ferrous sulfate in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB13877MIG World Health Organization schedules ferrous sulfate in its Anatomical Therapeutic Chemical (ATC) Classification As of Q4 2014, FERROUS SULFATE remains the US FDA Preferred Term for this commodity.

Ferrous sulfate bears US NLM identifiers UMLS ID C0060282 and NCI Concept Code C29049. SMILES: S(=O)(=O)(O)O.

UNSPSC 51191917 Ferrous sulfate is a Commodity code that shows minimal alignment with recent state and local procurement activity. The single recent opportunity tagged under this code—Sourcewell's RFP #061626, posted May 12, 2026, with response due June 16, 2026—solicits law enforcement equipment through a cooperative purchasing vehicle, not ferrous sulfate or related chemical products. The mismatch between the code's nominal scope (an iron-based chemical used in water treatment, soil amendment, and industrial processes) and the actual solicitation suggests either a classification error in the opportunity posting or that ferrous sulfate itself has no current state and local demand signals worth tracking. No issuing bodies, geographic regions, or representative ferrous sulfate procurement opportunities appear in the available recent activity.

The Sourcewell RFP does represent a broad multistate cooperative procurement—spanning Washington counties (Franklin, Grant, Grays Harbor, Chelan, Yakima) and eligible entities nationwide—but the scope is law enforcement equipment, not the ferrous sulfate this code describes. State and local procurement professionals tracking this Commodity code will find no actionable recent opportunities to pursue unless the code classification is corrected in future postings.