Primary Calibration PID (VPH) Back Catalog number: 91784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2427.6-K-IP 4-Bromophenol-2,3,5,6-d4,1000 µg/mL,isopropanol,1mL, Price on request 32941 Xylenes [Total Mixed Isomers] Price on request 3749.6-100MG 1,3,5-Trichlorobenzene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 108-70-3 Price on request