UNSPSC 51101658: Ferric cacodylate

This classification denotes an antihelminthic agent with the molecular formula 3C2H6AsO2.Fe, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier ZCT01NZ5HD, chemically known as arsinic acid, dimethyl-, iron(3+) salt but generally known as ferric cacodylate, which bears US NIH Compound Identifier 22273. Most nations schedule ferric cacodylate under HS 28444030 and SITC 52519. As of Q4 2014, FERRIC CACODYLATE remains the US FDA Preferred Term for this commodity.

Ferric cacodylate bears US NLM identifiers UMLS ID C0991824 and NCI Concept Code C81518. SMILES: C[As](=O)(C)[O-].C[As](=O)(C)[O-].C[As](=O)(C)[O-].[Fe+3].

UNSPSC 51101658 Ferric cacodylate is a Commodity code intended to classify a specific inorganic chemical compound, but recent state and local procurement activity shows little alignment with this narrow product scope. The code does not appear in active use for ferric cacodylate procurement; instead, the recent opportunities tagged to this code involve pharmaceutical products and medical supply procurement entirely unrelated to the ferric cacodylate specification. State and local governments do not appear to be sourcing ferric cacodylate under this code at present.

The two most recent opportunities associated with this code are a pharmaceutical warehouse piggyback award by the Illinois Department of Public Health in August 2026 for antibiotic tablets (Doxycycline Hyclate and Ciprofloxacin Hydrochloride) through the MMCAP Infuse consortium, and a Seminole County, Florida IFB for Naloxone and Safe Drug Deactivation Systems posted in June 2026 with a response deadline of July 26, 2023. Neither opportunity involves ferric cacodylate or any chemical matching the code's nominal scope. This code shows a significant mismatch between its intended commodity classification and actual state and local buying patterns, suggesting either a tagging error in the source data or obsolescence of the code in the state and local procurement taxonomy.