4-tert-Octylphenol, 100µg/ml in MeOH, 1ml Back Catalog number: PEO-003S Availability: In the manufacturer's stock Price on request - + Recommended S-4251-SET Aromatics Calibration Standards Kit (3 Internal Standard Version) 24 Analytes + 3 ISTD, each Vol.% as listed in isooctane; units: 5x1mL Set, one of each Std. 1-5 + opt. 1x1mL (Std. 6) To these calibration standards are 3 deuterated Internal Standards Price on request 94780 Diesel Fuel Markers Price on request 59806 Sulfate (SO42-) Price on request