4,4'-DDT, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678382 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 59179 TOC Calibration Standard (C) Price on request 681954 Tebufenpyrad, 10.0 µg/ml, Acetone, 10ml Price on request 59343 Perchlorate Level 5 Price on request