4,4'-DDE, 100 µg/ml, Methanol, 1ml Back Catalog number: 679459 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 71541 Isoprene Price on request 678351 Tecnazene, 100 µg/ml, Ethyl acetate, 1ml Price on request 679840 Tris-(2-chloropropyl)phosphate, 100 µg/ml, Methan Price on request