L-phosphoric acid, ACS reagent, >=85 and 2 more items

Sigma-Aldrich Inc has been awarded a contract by Virginia Polytechnic Institute and State University with an award date of July 10, 2026. The cumulative contract value is $215. The contract calls for the delivery of three chemical reagents to Li Tengfei: sulfanilamide (98.0% purity) at a unit price of $58.50, N-(1-naphthyl)ethylenediamine at $63.10 per unit, and phosphoric acid (American Chemical Society reagent grade, ≥85% concentration) at $93.70 per unit. Each item is being procured in a quantity of one unit.

As a Virginia-based procurement through an institution of higher education, this contract represents a materials purchase supporting laboratory or research operations. The relatively modest cumulative value and limited scope—consisting of single units of specialty chemical supplies—indicate this is a straightforward supply acquisition rather than a multi-year service engagement. No specific period of performance dates beyond the award date are provided in the contract documentation.