4,4’-DDD Back Catalog number: 70099 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2538.14-100MG Naproxen, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 22204-53-1 Price on request 678275 Chlorobenzilate, 100 µg/ml, Acetonitrile, 1ml Price on request 95276 PCB Mix 0.3 ppb Price on request