Trimethoprim, 100μg/mL in Acetonitrile, 1ml Back Catalog number: XA17875000AL Availability: In the manufacturer's stock Price on request - + Recommended 2342.10-K-HX Isobutylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 538-93-2 Price on request 675463 Nalidixic acid, 100mg Price on request 3189.20-K-IO Ethyl octadecanoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 111-61-5 Price on request