cis-2-Butene Back Catalog number: 72428 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1337.16-K-TX10 Fluoranthene-d10, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 93951-69-0 Price on request DF-149-S 1,4,9-Trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 38195 WS Formaldehyde Price on request