Niobium (Nb) Back Catalog number: 57041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2453.7-K-IP 2,6-Dinitroanisole, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 3535-67-9 Price on request 9487.16-50-AN 3-Chlorofluoranthene Price on request 93865 D-(+)-Xylose Price on request