Selenium (Se) Back Catalog number: 58034 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10131.11-150-IO 2,3,6-Trimethylbenzothiophene, 150µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 91144-23-9 Price on request ACQ-AQ05-115 Ethanol standard in water,0.5g/L,water, 1.5mL Price on request 677412 Androsterone, 100mg Price on request