Butyric acid, 1ml Back Catalog number: 680166 Manufacturer: HPC STANDARDS GmbH 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 675517 Nitrapyrin, 10 µg/ml, Ethyl acetate, 10ml Price on request PAH-ISS-B PAH Internal Standard Spiking Solution, 1.2ml, isooctane Price on request