Niobium (Nb) Back Catalog number: 58041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675339 3,5-Dinitrobenzoic acid, 250mg Price on request 682033 Tetradecanoic acid-methyl ester, 1ml Price on request 675845 D3-TFNA, 100 µg/ml, Acetonitrile, 1ml Price on request