Niobium (Nb) Back Catalog number: 58041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676337 Spinosyn A, 100 µg/ml, Acetonitrile, 1ml Price on request 0889.13-500-IO 3-Methyldiphenylsulfide, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13865-48-0 Price on request 52328 Trace Elements #4 Price on request