UNSPSC 51313702: Bosentan

This classification denotes an endothelin receptor antagonist with the molecular formula C27H29N5O6S.H2O, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier Q326023R30, chemically known as 4-(1,1-dimethylethyl)-n-(6-(2-hydroxyethoxy)-5-(2-methoxyphenoxy)-(2,2-bipyrimidin)-4-yl)benzenesulfornamide but generally known as bosentan, which bears US NIH Compound Identifier 104865. Bosentan most often comes in basic and hydrate forms.

UNSPSC 51313702 Bosentan is a Commodity code that nominally covers a specific pulmonary hypertension pharmaceutical, yet the recent state and local procurement activity tagged under it does not align with that narrow scope. Seminole County, Florida posted an IFB in June 2026 for naloxone and drug deactivation systems—opioid-response and harm-reduction supplies entirely outside the bosentan classification. The mismatch suggests either a cataloging error in the county's procurement system or an overly broad tagging of a health-department commodity purchase. State and local issuers under this code appear to be county health departments and emergency-services agencies acquiring pharmaceutical and medical-response supplies to support community health and substance-abuse mitigation programs.

The geographic spread of recent activity is limited to Florida; the source identifies only the single Seminole County solicitation. Seminole County's IFB 60459723LAS, posted June 30, 2026 with a response deadline of July 26, 2023, sought 1,900 units of naloxone and 800 safe drug deactivation systems annually with quarterly deliveries to the Seminole County Community Health Building in Sanford. Bidders were required to submit electronic proposals through the county's e-Procurement Portal, include all shipping and delivery costs, and comply with drug-free workplace certification and E-Verify requirements. The contract term was two years with an optional one-year renewal. Beyond this single opportunity, the source provides no additional recent state and local activity under this code, indicating minimal current procurement velocity in this category.