UNSPSC 51131514: Carbonyl iron

This classification denotes a complex of iron atoms chelated with carbonyl ions, and which generally arises in the molecular formula C5FeO5, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 6WQ62TAQ6Z. European Medicines Agency schedules carbonyl iron in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB14266MIG. SMILES: [C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[Fe].

UNSPSC 51131514 Carbonyl iron is a Commodity code that nominally covers a specialized iron powder material, but the most recent state and local activity under this code reflects a mismatch between the code's scope and the work actually being solicited. Sourcewell, a Minnesota local government cooperative purchasing unit, posted RFP #061626 in May 2026 for Law Enforcement Equipment, which does not align with carbonyl iron procurement. The code shows little relevant recent activity tied to its actual commodity scope.

Sourcewell's law enforcement equipment solicitation (due June 16, 2026) is structured as a cooperative purchasing vehicle advertised under Washington state law and available to thousands of governmental agencies, school districts, nonprofit organizations, and tribal governments across the United States and Canada, with specific participation by Franklin County, Grant County, Grays Harbor County, Chelan County, and Yakima County in Washington. The mismatch between the carbonyl iron commodity definition and the law enforcement equipment procurement suggests that either the opportunity was tagged incorrectly in the state and local system or the code captures a component material within law enforcement equipment that is not the primary focus of buyer inquiry. Business development professionals evaluating this code should verify whether carbonyl iron materials see standalone procurement activity under other codes or whether state and local agencies source the material only as an embedded component within finished goods.