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 70081 2-Chloronaphthalene Price on request 54156 WP Total Hardness Price on request 51151 Sulfur in Heavy Weight Mineral Oil - 1.0 Wt% Price on request