Sulfisoxazole, 100 µg/ml, Methanol, 1ml Back Catalog number: 679822 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 2267.12-100-IO 2,2',3,3',4,4',5-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 35065-30-6 Price on request EPA-23IS Internal Standard Solution, 1.2ml, nonane Price on request 74219 Fenpropimorph, 1000μg/mL in Acetonitrile, 1ml Price on request