CWA TRPH Back Catalog number: 38165 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681691 2,3,5,6-Tetrachlorophenol, 100 µg/ml, Methanol, Price on request 678428 Heptachlor endo-epoxide, 100µg/ml, Acetonitrile, 5ml Price on request 94001 Indeno(1,2,3-cd)pyrene Price on request