Trimethoprim, >99%, 1g Back Catalog number: 92131-1G Availability: In the manufacturer's stock Price on request - + Recommended 3116.10-50-IO 1,4-Dibromonaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 83-53-4 Price on request 1654.13-100-IO 1,1,1,3,12,13-Hexachlorotridecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 865306-23-6 Price on request 50132 Mercury (Hg) Price on request