... price and best service 3.Professional supplier 2,4D Acid 98%TCA.I. Content,%(m/m)≥ 96. ... D Amine salt content, g/L≥ 7202,4-D Acid content, g/L≥600Free phenol, %≤ 0.5Specific ... diethyl ether 243, heptane 1.1, toluene 6.7, xylene 5.8 (all in g/kg, 20 ºC); ... pKa2.73 2.APPLICATIONS BiochemistrySynthetic auxin (acting like indolylacetic acid). Mode of actionSelective systemic herbicide. Salts are readily ...