Etridiazole, 100 µg/ml, Toluene, 5ml Back Catalog number: 675830 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended EPA-23ISS Internal Standard Stock Solution, 1.2ml, nonane Price on request 0218.17-10MG 11H-Benzo[b]fluorene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 243-17-4 Price on request 70193 Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml Price on request