Interference Standard 4 Back Catalog number: 53041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1047.19-K-IO n-Tridecylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6006-33-3 Price on request 71885 Di-n-propyl phthalate Price on request 71008 Tris(2,3-dibromopropyl)phosphate Price on request