4,4’-DDD Back Catalog number: 79290 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L16545000AL Prosulfocarb, 10µg/mL in Acetonitrile, 10ml Price on request 34611 n-Butane Price on request 1569.18-10MG Norcodeine, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 467-15-2 Price on request