4,4'-DDT, 100 µg/ml, Cyclohexane, 1ml Back Catalog number: 684390 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 79159 N-Nitrosodimethylamine Price on request 8383.6-3K-ME n-Butyl acetate, 3000µg/mL, Solvent-Methanol, Unit 1mL, # of units-1, Cas.no. 123-86-4 Price on request 679929 m-Xylene, 5ml Price on request