Silicon (Si) Back Catalog number: 56114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673538 4,4'-DDT, 100 µg/ml, Ethyl acetate, 5ml Price on request 675305 Terbutryn, 100 µg/ml, Acetonitrile, 5ml Price on request 0845.29-100-IO (24R)-24-Ethylcholest-2-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 69088-87-5 Price on request