Perchlorate Level 5 Back Catalog number: 59343 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1337.16-K-TX5 Fluoranthene-d10, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 93951-69-0 Price on request 56134 Selenium (Se) Price on request DD-124-S 1,2,4-Trichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request