Praseodymium (Pr) Back Catalog number: 57059 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1830.4-1G 2-Bromothiophene, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1003-09-4 Price on request E649952 Erythromycin-13C,d3, 1mg Price on request 8887.21-50-T 3,3',5,5'-Tetrabromobisphenol A diallyl ether, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 25327-89-3 Price on request