4,4’-DDD Back Catalog number: X9054 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2828.16-50-ME Perfluorohexadecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 67905-19-5 Price on request 10894.10-10-ME 4-Hydroxysulfadiazine,10 µg/mL,MeOH,1mL, Price on request 79122 n-Nonane Price on request