UNSPSC 51283940: Sulfachlorpyridazine or sulfaclozine

This classification denotes a sulfonamide anti-infective agent, a preparation that US FDA recognizes as an active ingredient or moiety under Unique Ingredient Identifier P78D9P90C0. The European Medicines Agency schedules Sulfachlorpyridazine in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB10688MIG. Sulfachlorpyridazine generally arises in the molecular formula C10H9CLN4O2S.

The term SULFACHLORPYRIDAZINE is an International Non-Proprietary Name or INN (see World Health Organization INN reference publication, volume 16, no. 3 1962, list 4.) SULFACHLORPYRIDAZINE is scheduled in the U.S. International Trade Commission's Harmonized Tariff System (HTS) Pharmaceutical Appendix. SMILES: C1=CC(=CC=C1N)S(=O)(=O)NC2=CC(=NN=C2)CL.

UNSPSC 51283940 Sulfachlorpyridazine or sulfaclozine is a Commodity code that shows minimal alignment with recent state and local procurement activity. The code's nominal scope—a specific veterinary antimicrobial—does not match the work actually being solicited under this classification in state and local markets. Recent opportunities tagged to this code involve naloxone and drug deactivation systems, direct-to-manufacturer prescription programs, emergency medical and first aid supplies, and generic multi-source pharmaceuticals and over-the-counter products. None of these represent sulfachlorpyridazine procurement, and the code appears to capture broad pharmaceutical and medical supply purchases that fall far outside its intended product definition. The issuing bodies include county health departments, state health and human services commissions, municipal fire departments, and cooperative purchasing alliances, but the tagging mismatch suggests the code may be misapplied in state and local procurement systems for general pharmaceutical and medical supply categories.

Geographically, recent opportunities appear in Florida (Seminole County), Texas, Florida (City of Tampa), and Minnesota (multistate cooperative), though the concentration reflects the misclassification issue rather than legitimate market activity for the code's nominal product. Representative recent opportunities include Seminole County, Florida's IFB 60459723LAS for naloxone and drug deactivation systems with a July 26, 2023 deadline; the City of Tampa's IFB 26P00145 for medical and first aid supplies for the Fire Department Rescue Division with a March 13, 2026 deadline and an estimated contract value of $700,000; and the Minnesota Multistate Cooperative Purchasing Alliance's RFP S1070000015802 for generic multi-source pharmaceuticals and OTC products with a March 26, 2026 response deadline. The code shows no relevant recent activity for sulfachlorpyridazine itself and should not be relied upon for business development targeting in this commodity area.