MA - EPH Matrix Spike Back Catalog number: 92113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66074 2,4,4',5-Tetrachlorobiphenyl (74) Price on request 72605 Trimethoprim Price on request 2411.11-K-IPX5 4-n-Pentylphenol-d16, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 1219805-40-9 Price on request