18O4-Sodium perchlorate, 5mg Back Catalog number: 674916 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 680075 1,4-Dichloro-2-nitrobenzene, 250mg Price on request 2025.6-1ML Pentachlorobenzene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 608-93-5 Price on request 673650 Paraoxon-methyl, 100 µg/ml, Ethyl acetate, 5ml Price on request