UNSPSC 51282408: Mezlocillin sodium

This classification denotes an extended spectrum penicillin antibiotic with the molecular formula C21H24N5O8S2.Na, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier RX227TP94U, chemically known as 4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-6-(((((((3-(methylsulfonyl)-2-oxo-1-imidazolidinyl)carbonyl)amino)carbonyl)amino)phenylacetyl)amino)-7-oxo-, monosodium salt, (2s-(2alpha,5alpha,6beta(s*)))- but generally known as mezlocillin sodium, which bears US NIH Compound Identifier 43084.

UNSPSC 51282408 Mezlocillin sodium is a Commodity code covering pharmaceutical products for state and local government procurement. Recent state and local opportunities tagged under this code show little alignment with the code's nominal scope — the recorded solicitations involve naloxone, ciprofloxacin hydrochloride, doxycycline hyclate, and safe drug deactivation systems, none of which are mezlocillin sodium. The actual purchasing activity reflects state departments and county health agencies acquiring antimicrobial pharmaceuticals and opioid-overdose response supplies through piggyback contracts and competitive sealed bids to support public health operations, emergency preparedness, and community health initiatives.

State and local solicitations under this code span Florida and Illinois, with both opportunities addressing public health supply chains. The Illinois Department of Public Health awarded a pharmaceutical warehouse piggyback contract through the MMCAP Infuse consortium to Chartwell Rx LLC on August 28, 2026 for doxycycline hyclate and ciprofloxacin hydrochloride, a twelve-month contract with renewal options totaling $2,999,999.11 over three years. Seminole County, Florida released an IFB on June 30, 2026 for 1,900 units of naloxone and 800 safe drug deactivation systems annually with quarterly deliveries, with a response deadline of July 26, 2023. The mismatch between the code's nominal product (mezlocillin sodium, a penicillin-based antibiotic) and the pharmaceuticals actually being solicited suggests either misclassification in the jurisdiction's procurement system or limited recent activity directly aligned with mezlocillin procurement at the state and local level.