1-Naphthol-4-sulfonic acid, 10mg Back Catalog number: 677421 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended S-4168-ASS-10IOX5 Valve Timing Calibration Mix (with Internal Standard) 5 Analytes, each Wt.% as listed in isooctane; units: 1x10mL and 5x10mL Name Wt.% Name Wt.% Benzene 4.5 o-Xylene Price on request 0704.13-500-IO 1,4,5-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2131-41-1 Price on request 82722 8270 Semi-Volatile Mix Price on request