QC Standard 1 Back Catalog number: 53084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70355 1,2:3,4-Diepoxybutane Price on request 2397.8-K-IPX5 2,6-Dimethylphenol-3,5,6-d3-OD, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 285132-85-6 Price on request 30048 EPA Method 548 Analyte Price on request