4,4’-DDD Back Catalog number: X9054 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70277 1,1,1,2-Tetrachloroethane Price on request 11704.12-100-IO 2,4,4',6-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 675902 Propylene thiourea, 250mg Price on request