4,4’-DDD Back Catalog number: 70099 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94516 Internal Standard for AB SIM Price on request 9725.11-100MG 1-Undecanol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 112-42-5 Price on request 79403 Aroclor 1221 Price on request