Niobium (Nb) Back Catalog number: 58041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93645 Volatile Standard Price on request BDE-153S 2,2',4,4',5,5'-Hexabromodiphenyl ether,50µg/ml,1ml Price on request 34481 1,2-Difluorotetrachloroethane Price on request