Interference Standard 4 Back Catalog number: 53041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1609.42-200-T Rubrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 517-51-1 Price on request 12064.18-100-IO Tris(2-butyloxyethyl)phosphate-d27,100 µg/mL,isooctane,1mL, Price on request 673954 gamma-HCH, 250mg Price on request