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 56056 Barium (Ba) Price on request 676654 o-Toluidine, 1ml Price on request 674530 Benzalkonium chloride Mix C10-C16, 10.0 µg/ml, Ac Price on request