Niobium (Nb) Back Catalog number: 57041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1244.8-100-ME 2,4,4-Trimethyl-1-pentene, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 107-39-1 Price on request P48-SS Mass-Labelled PCB Sampling Standard, 1.2ml, nonane Price on request 93627 Herbicide Acid Standard Price on request