Selenium (Se) Back Catalog number: 59960 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2688.34-10UG 17 alpha(H),21ß(H)-(22S)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 67069-13-0 Price on request 54203 Anions Mix #2 Price on request 3933.6-1ML 2-Bromofluorobenzene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1072-85-1 Price on request