UNSPSC 51191916: Dihydrotachysterol

This classification denotes a vitamin d analog with the molecular formula C28H46O, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier R5LM3H112R, chemically known as 9,10-secoergosta-5,7,22-trien-3-ol, (3beta,5e,7e,10alpha,22e)- but generally known as dihydrotachysterol, which bears US NIH Compound Identifier 5281010. European Medicines Agency schedules Dihydrotachysterol in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB07141MIG. The term DIHYDROTACHYSTEROL is an International Non-Proprietary Name.

UNSPSC 51191916 Dihydrotachysterol is a Commodity code that does not align with the state and local procurement activity appearing under it in recent solicitations. The code nominally describes a pharmaceutical sterol compound used in vitamin D supplementation, yet the three most recent opportunities posted under this code span industrial chemical supply (sodium bisulfite for municipal water treatment), medical equipment and parenteral nutrition services (intravenous solutions and nutrition bags for a state correctional system), and industrial valve components and repair services (DeZurik/APCO valves for wastewater facilities). None of these solicitations involve dihydrotachysterol or vitamin D products. The mismatch suggests either a data classification error or a systemic miscoding issue in the state and local procurement database rather than legitimate buying activity under the Commodity code as defined.

The three issuing bodies span different government entity types: a Florida county (Broward County), a state department of corrections (Washington State Department of Corrections), and a municipal utilities department (City of Meriden, Connecticut). Activity is geographically scattered across Florida, Washington, and Connecticut with no discernible pattern. The Washington State Department of Corrections RFQ for parenteral products, services, and equipment (due October 7, 2026) is the most substantial recent opportunity, covering eight correctional facilities across three regions and inviting small, minority-owned, women-owned, and veteran-owned business participation with set-aside aspirations. The City of Meriden's IFB for sodium bisulfite chemical supply (bid due July 29, 2026) and Broward County's RFI on DeZurik/APCO valves and repair services (responses due September 29, 2026) are unrelated to the code's nominal pharmaceutical scope. State and local procurement professionals should verify the correct UNSPSC code classification for these opportunities or determine whether the code itself has been corrupted in the source system.