2,4-D n-butyl ester Back Catalog number: 71629 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1855.18-K-IO n-Dodecylbenzene-d30, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 352431-29-9 Price on request 97985 EPA Method 502/524 Volatile Standard Price on request 10139.18-10MG 17ß-Estradiol-2,4,16,16-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 66789-03-5 Price on request