4,4’-DDD Back Catalog number: X9054 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680050 Diethyldithiophosphate, 250mg Price on request 677133 1-Methylnaphthalene, 250mg Price on request DTPP Triphenyl phosphate-d15, 1.2ml x 50ug/ml, toluene Price on request