Selenium (Se) Back Catalog number: 56134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2414.15-K-5IP 4-n-Nonylphenol-2,3,5,6-d4-OD, 1000µg/mL, Solvent-isopropanol, Unit 5mL, # of units-1, Cas.no. 358730-95-7 Price on request 679468 Endosulfan-sulfate, 100 µg/ml, Methanol, 1ml Price on request 2576.27-10UG 3-Methylphenanthro[3,4-c]phenanthrene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 83844-21-7 Price on request