TPH Internal Standard Back Catalog number: 92636 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16415200 2-Propanol, certified, 5ml Price on request 674014 MCPB, 100mg Price on request 2030.12-50-T 1-Chlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 39227-53-7 Price on request