Ampicillin,neat,neat,250mg, Back Catalog number: 11634.16-250MG Manufacturer: CHIRON AS Availability: In the manufacturer's stock Price on request - + Recommended 2574.26-100UG Benzo[a]pentacene (in vial for quick-preparation of solution), neat, Solvent-neat, Unit ca. 100µg, # of units-1, Cas.no. 239-98-5 Price on request 8218.14-K-AN n-Heptanal-PFBOA derivative, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. Price on request 673647 Paraoxon-ethyl, 10.0 µg/ml, Ethyl acetate, 10ml Price on request