Interference Standard 4 Back Catalog number: 52041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C15123000 4-Methyl-2-pentanone, certified, 1ml Price on request X9129 3-Methylcholanthrene Price on request S-11786A1-1ML Dinoseb, 100µg/ml in Acetonitrile, 1ml Price on request