Selenium (Se) Back Catalog number: 56034 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended P48-M-ES Marker PCB Extraction Standard, 1.2ml, nonane Price on request 97345 2,4-Dimethylaniline Price on request 2533.11-25MG (2RS)-2-(4-Ethylphenyl)propanoic acid, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 3585-52-2 Price on request