Perchlorate (ClO4-) Back Catalog number: 57002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95640 Nitrosamines Standard Price on request 3818.18-50-DRIED Senecionine,50 µg/mL,dried down,1mL, Price on request 2126.12-K-IOX10 Arochlor 1242 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 53469-21-9 Price on request