4,4’-DDD Back Catalog number: 79290 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92839 1-Methylphenanthrene Price on request 673529 4,4'-DDD, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 675668 Sulprofos, 100 µg/ml, Ethyl acetate, 5ml Price on request