Trimethoprim, certified, 0.25g Back Catalog number: C17875000 Availability: In the manufacturer's stock Price on request - + Recommended 96218 PCB Isomer Standard, 100µg/ml in Isooctane, 1ml Price on request 79373 Hexachlorobutadiene Price on request ACQ-AQ01-030 Ethanol standard in water,0.1g/L,water, 3mL Price on request