Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 34251 trans-1,4-Dichloro-2-butene Price on request 59919 Spike Solution #1B Price on request 8635.18-25-AN U{13C18}-Zearalenone, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no. Price on request