... 2,4-DCommon name2,4-D (BSI, E-ISO, (m) F-ISO, WSSA); 2,4-PA (JMAF)IUPAC name(2,4-dichlorophenoxy)acetic acid Chemical Abstracts name(2,4 ... 202-361-1 Development codesL208 (Marks) PHYSICAL CHEMISTRY 2,4-DCompositionTech. is ³96% pure. Mol. wt.221 ... 1250, diethyl ether 243, heptane 1.1, toluene 6.7, xylene 5.8 (all in g/kg, ... including areas adjacent to water), at 0.28-2.3 kg/ha. Control of broad-leaved ...