Oxalic Acid (C2H2O4) Back Catalog number: 54196 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4373-K-5IP EPA 8041A Surrogate Standard PFB-derivatives S-4373 1mg/mL in isopropanol, 1 mL, 5 x 1mL, 5mL 2,4-Dibromophenol-PFB Price on request 70780 2-Methylheptane Price on request DF-23478-S 2,3,4,7,8-Pentachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request