3-Ethyltoluene, 200 µg/ml, Methanol, 1ml Back Catalog number: 680469 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DF-LCS-A Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane Price on request 3411.9-100-CY Folpet Price on request 680404 Fluorene, 100 µg/ml, Acetonitrile, 1ml Price on request