UNSPSC 51172339: Sodium thiosulfate pentahydrate

A medication used as an antidote in cases of cyanide poisoning. Thiosulfate acts as a sulfur donor to produce the conversion of cyanide to thiocyanate, which can then be safely excreted through urine, that conversion is catalyzed by the enzyme rhodamine (rhodanase). It has also been used as a treatment for calciphylaxis in patients undergoing hemodialysis, who have chronic kidney disease. It is also used in the management of extravasation of urine in chemotherapy.

Sodium thiosulfate prevents alkylation and tissue destruction, providing a substrate for the alkylating agents that have invaded the subcutaneous tissues. It is also used in foot baths for the prophylaxis of dermatophytosis and as a topical antifungal agent for Pityriasis versicolor.

UNSPSC 51172339 Sodium thiosulfate pentahydrate is a Commodity code that nominally describes a specific chemical compound used in laboratory and industrial applications, but the recent state and local procurement activity tracked under this code does not reflect purchase of the chemical itself. Instead, Collin County Community Supervision and Corrections Department posted an RFP for offender specimen collection and drug testing services — a scope involving staffing, lab operations, immunoassay screening with confirmatory testing (LC/MS/MS or GC/MS), and alternative testing methodologies including oral fluid and hair analysis. The code shows little relevant recent activity aligned with its stated chemical commodity; the single posted opportunity under this identifier concerns drug-testing program management rather than sodium thiosulfate procurement, indicating a potential tagging mismatch between the opportunity and the UNSPSC classification.

Collin County's RFP 2026-327, due July 23, 2026, sought proposals for two collection sites in Plano and McKinney operating Monday through Friday 8:00 a.m. to 5:00 p.m., plus five Saturdays annually, with an estimated annual testing volume of approximately 25,031 tests across five-panel, six-panel, and ancillary screening. The contract value is estimated at $600,000 over a two-year initial term with three optional one-year renewals, pricing submitted on a per-test basis across three service models (screening only, confirmation after screening, and screening with automatic confirmation). The successful vendor must hold lab certification from SAMHSA, TX DPS, or CAP, and all pricing must include freight, delivery, insurance, and staffing with no additional surcharges permitted. Given the mismatch between the code's nominal scope and actual recent procurement, firms pursuing activity under UNSPSC 51172339 should verify that future opportunities actually concern sodium thiosulfate or related chemical compounds rather than testing and lab services.