2,4’-DDD, 1000µg/ml in Hexane, 1ml Back Catalog number: 79051 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95241 Primary Freon Standard Price on request C16170500 Phthalic acid, bis-2-n-butoxyethyl ester, certified, 0.1g Price on request 1012.6-1G Di-n-propyldisulfide, neat, Solvent-Neat, Unit 1g, # of units-1, Cas.no. 629-19-6 Price on request