... service 3.Professional supplier NOMENCLATURE 2,4-DCommon name2,4-D (BSI, E-ISO, (m) F-ISO, WSSA ... water 18 g/l (30 ÂșC). Stability2,4-D is a strong acid, and forms water-soluble salts ... prevent this. Photolytic DT50 (simulated sunlight) 7.5 d. pKa2.73 APPLICATIONS BiochemistrySynthetic auxin (acting like indolylacetic acid ... depends upon the particular formulation. 2 4-D Sodium 80%SP