D2-Metronidazole-hydroxy, 10mg

4,4'-DDE, 100 µg/ml, Toluene, 5ml

ISO 9377-2 Standard Mixture of n-Alkanes C10-C40 (all even) Determination of Hydrocarbon Oil in Water Index 16 Analytes, each 50 µg/mL in n-Pentane; units: 1x1mL, 1x5mL, 10x1mL This standard is also available as 100µg/mL in Cyclohexane Units: 1x1

4-Ethylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 123-07-9