WS Haloacetic acids Back Catalog number: 38038 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677915 Mefenacet, 100 µg/ml, Acetonitrile, 1ml Price on request 71525 Pentamethylbenzene Price on request 674234 Fenthion-oxon-sulfoxide, 10.0 µg/ml, Acetonitrile Price on request