Interference Standards Set Back Catalog number: 52038 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680378 Caffeic acid, 100mg Price on request 2673.7-50-IO Pentabromotoluene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 87-83-2 Price on request DEC-604 Dechlorane 604, 1.2ml x 50ug/ml, toluene Price on request