Primary Calibration PID (VPH) Back Catalog number: 91784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681526 Sulcotrione, 100 µg/ml, Acetonitrile, 5ml Price on request 3847.6-K-IP Resorcinol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 108-46-3 Price on request 8021.16-100-ME Heliotrine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 303-33-3 Price on request