4,4’-DDD Back Catalog number: 70099 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2874.11-50-ME Perfluoroundecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2050-94-8 Price on request 10532.27-10MG 25-Hydroxyvitamin D3 Price on request 10548.16-10MG Mono(2-ethyl-5-oxohexyl) phthalate Price on request