Trimethoprim, 100 µg/ml, Methanol, 1ml Back Catalog number: 679824 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 59837 TOC Calibration Standard (C) Price on request 50778 Turbidity (2.0 NTU) Price on request 57345 Rhodium (Rh) Price on request