4,4'-DDD, 100 µg/ml, Methanol, 1ml Back Catalog number: 679457 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended XA16440100AC Propazine D6 (isopropyl D6), 100 ng/µl, 1.1ml Price on request 681951 Quintozene, 100 µg/ml, Cyclohexane, 1ml Price on request 0259.17-K-T 11H-Benzo[a]fluorene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 238-84-6 Price on request