Phthalic acid, bis-iso-nonyl ester (tech.), certified, 0.25g

Primary Calibration PID (VPH)

2,4-Dinitrophenol, stabilized with min. 30% water, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 51-28-5

Triphenylene