TOC Calibration Standard Back Catalog number: 50110B Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8845.7-K-IO 2-Isopropylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 30147 EPA Method 548 Analyte Price on request 31531 p-Xylene Price on request