Trimethoprim, 100μg/mL in Acetonitrile, 1ml Back Catalog number: XA17875000AL Availability: In the manufacturer's stock Price on request - + Recommended 9521.14-50-ME 1H,1,H,2H,2H-Perfluorodecyl methacrylate-d5, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request EPA-8290HRCCAV Calibration Kit; Alternate Volume, 5 x 200ul, nonane Price on request 3749.6-K-IO 1,3,5-Trichlorobenzene, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 108-70-3 Price on request