UNSPSC 51203100: Immunosupressant peptides

This classification denotes compounds consisting of amino acids bound by peptide bonds branched, cyclical, or linear structures, substances called peptides, that reduce a human host's humoral and/or cell-mediated defense mechanisms against deviant native cells, foreign organisms, or foreign substances (the human immune response and system thereof), thus the term IMMUNOSUPRESSANT PEPTIDES.

UNSPSC 51203100 Immunosuppressant peptides is a Class code whose recent state and local procurement activity bears little relation to its nominal scope. The two opportunities tagged to this code involve pharmaceutical procurement — one a piggyback warehouse order for antibiotic tablets (Doxycycline Hyclate and Ciprofloxacin Hydrochloride) through a consortium agreement, and the other a county purchase of naloxone and drug deactivation systems for community health support. Neither involves immunosuppressant peptides as pharmaceutical products. The mismatch suggests the code has been misapplied in these instances, or that state and local procurement offices are using the UNSPSC classification inconsistently for pharmaceutical commodity buys that fall outside the code's intended scope.

The opportunities come from different issuing bodies and geographies. The Illinois Department of Public Health awarded a completed contract to Chartwell Rx LLC on August 28, 2026, for a total of $2,999,999.11 over a three-year term (12-month initial plus two renewal years), using an Invitation for Bid process through the MMCAP Infuse consortium. Seminole County, Florida, posted an Invitation for Bid (IFB 60459723LAS) on June 30, 2026, for annual purchases of 1,900 units of naloxone and 800 safe drug deactivation systems with quarterly deliveries, though the due date listed (July 26, 2023) appears to be a data error. Illinois and Florida represent the only states with recent activity tagged to this code, and neither opportunity reflects the immunosuppressant peptide market this code nominally addresses. Practitioners should verify the correct code classification before pursuing opportunities marked under this code, or monitor whether misclassification represents a systemic issue across state and local procurement offices.