Selenium (Se) Back Catalog number: 58134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10107.9-50-ME Tris(2,3-dibromopropyl)phosphate, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 126-72-7 Price on request 71227 p-Terphenyl, 1000µg/ml in MethyleneChloride, 1ml Price on request 98553 Formaldehyde (0.3 ppm) Price on request