UNSPSC 51203405: Mercaptopurine ribonucleoside

This classification denotes a purine antagonist and immunosuppressant with the molecular formula C10H12N4O4S, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 46S541971T, chemically known as 9h-purine-6(1h)-thione, 9-.beta.-d-ribofuranosyl-, but more generally known as mercaptopurine ribonucleoside, which bears US NIH Compound Identifier 676166. European Medicines Agency schedules mercaptopurine ribonucleoside or its base in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB12149MIG.

Most nations, for tariff purposes, schedule mercaptopurine ribonucleoside under HS 29335995. SMILES: C1NC2C(C(N1)S)NCN2[C@H]3[C@@H]([C@@H]([C@H](O3)CO)O)O.

UNSPSC 51203405 Mercaptopurine ribonucleoside is a Commodity code for a specific pharmaceutical active ingredient, but recent state and local solicitations tagged under this code do not reflect procurement of mercaptopurine ribonucleoside itself. The Illinois Department of Public Health's August 2026 piggyback pharmaceutical warehouse contract through MMCAP Infuse awarded to Chartwell Rx LLC covered Doxycycline Hyclate 100mg tablets and Ciprofloxacin Hydrochloride 500mg tablets—antibiotics, not the cancer therapeutic named in the code. Seminole County, Florida's June 2026 IFB for Naloxone and Safe Drug Deactivation Systems similarly diverges from the code's nominal scope, targeting opioid-overdose reversal agents and drug-disposal equipment for community health initiatives. The mismatch suggests the code is either misapplied by issuing bodies or sees minimal relevant recent activity; state and local procurement professionals should verify actual pharmaceutical needs before targeting this code.

Recent opportunities come from health departments and county governments in Illinois and Florida, but neither represents the work described in the code's title. The Illinois contract, a completed award with a total value of $2,999,999.11 over three years including renewals, was processed as an IFB with quarterly supply and logistics requirements. Seminole County's IFB called for 1,900 units of Naloxone and 800 Safe Drug Deactivation Systems annually with quarterly deliveries to a single county health facility, compliance with E-Verify and drug-free workplace certification, and potential FEMA funding implications. No set-asides or vendor preferences are noted in either opportunity. Code 51203405 shows no genuine recent activity aligned with mercaptopurine ribonucleoside procurement across state and local jurisdictions.