Detailed Product Description Common Name 2, 4-D IUPAC (2, 4-dichlorophenoxy)acetic acid CAS (2, 4-dichlorophenoxy)acetic acid CAS No ... point:140.5 °C; Vapour pressure:1.86 × 10-2 mPa(25 °C, OECD 104); Henry constant:1.32 × ... 1 (calc.); Partition coefficient(n-octanol and water):logP = 2.58-2.83 (pH 1), 0.04-0.33 (pH 5 ... 6.7, xylene 5.8 (all in g/; Stability:2, 4-D is a strong acid, and forms water- ...