... 5). pKa -3.1 (calc.) F.p. 83 °C Mol. wt. 327.3 M.f. C15H12F3NO4 Form Pale ... = 3.1 (pH 2.6, 20 °C), -0.8 (pH 7, 20 °C, est.) Henry 3 ´ 10-7 Pa ... Solubility In purified water 780 mg/l (20 °C). Stability No significant hydrolysis at pH 5, 7 and ... 9 (25 °C). pKa 2.98 APPLICATIONS Biochemistry Fatty acid synthesis inhibitor ... 5.3-7.7), DT50 2-9 d (20 °C). Field DT50 <4 w. Koc 39-84. For ...