4,4’-DDT Back Catalog number: 79150 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 54169 Silica (SiO2) Price on request MPFAC-HIF-ES Mass-Labelled PFAS Extraction Standard, in MeOH, 1,2ml Price on request 2367.4-KIT n-Octylphenol EO Kit (EO=0-3, Not including 3688.12), , Solvent-, Unit Kit, # of units-, Cas.no. Price on request