17ß(H),21ß(H)-30-Norhopane, 5µg Back Catalog number: 2640.29-5UG Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended DF-LCS-A40 Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane Price on request 90877 GPC Calibration Standard Price on request XA16370000AL Prometryn, 100μg/mL in Acetonitrile, 1ml Price on request