2,4’-DDD, 1000µg/ml in Hexane, 1ml Back Catalog number: 79051 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14500-0330-100AN5 2-Chloronaphthalene, 100µg/ml in Acetonitrile, 5ml Price on request 31882 EPA Method 507 Nitrogen Phosphorus Pesticide Price on request 94574 EPA Method 525 Standard Price on request