Formothion, 100 µg/ml, Ethyl acetate, 1ml Back Catalog number: 681222 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 22213 EPA Method 8260B Internal Standard Price on request 50329 Interference Check Standard Price on request 8730.12-K-IO Diethyl terephthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request