UNSPSC 51283607: Rifamycin b

This classification denotes an antitubercular agent with the molecular formula C39H49NO14, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 8DDB535DJI, chemically known as 4-o-(carboxymethyl)rifamycin, but more generally known as rifamycin b, which bears US NIH Compound Identifier 5459948. European Medicines Agency schedules rifamycin b or its base in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB10310MIG. Most nations, for tariff purposes, schedule rifamycin b under HS 29419000.

SMILES: CC1C(C2C3C(CC(C2O)NC(=O)/C(=C\C=C\[C@@H]([C@@H]([C@H]([C@H]([C@H]([C@@H]([C@@H]([C@H](/C=C/O[C@@]4(C(=O)C3C1O4)C)OC)C)OC(=O)C)C)O)C)O)C)/C)OCC(=O)O)O.

UNSPSC 51283607 Rifamycin B is a Commodity code covering pharmaceutical active ingredients and finished-dose products. State and local procurement activity under this code centers on the purchase of specific pharmaceutical products—antibiotics, opioid antagonists, and related medicines—through competitively bid contracts and cooperative purchasing vehicles. The Illinois Department of Public Health and Seminole County, Florida are recent buyers, representing both state health departments and county-level public health authorities. These jurisdictions acquire products either as part of emergency preparedness stockpiles, public health initiatives, or community health support programs, typically through Invitation for Bid (IFB) or piggyback cooperative purchasing arrangements.

Recent activity shows Illinois Department of Public Health awarded a pharmaceutical warehouse contract through the MMCAP Infuse consortium to Chartwell Rx LLC on August 28, 2026 for Doxycycline Hyclate and Ciprofloxacin Hydrochloride products totaling $2.999 million over three years. Seminole County, Florida issued an IFB (26-IFB60459723LAS, posted June 30, 2026) seeking annual supply of 1,900 units of Naloxone and 800 Safe Drug Deactivation Systems with quarterly delivery to its Community Health Building in Sanford. Geographic activity is concentrated in the Southeast and Midwest, with responses due by September 11, 2026 (Illinois) and July 26, 2023 (Seminole County). Cooperative purchasing vehicles such as MMCAP Infuse are active channels; direct-bid IFBs at the county level are the alternative procurement path. Neither opportunity carried explicit set-aside or preference requirements.