<table class="table table-sm table-bordered" id="experimental-properties"><thead><tr><th class="head-medium">Property</th><th class="head-large">Value</th><th>Source</th></tr></thead><tbody><tr><td>melting point (°C)</td><td>240.5-241.5</td><td>Cragoe, E.J., Jr.; US. Patent 3,313,813; April 11,1967; assigned to Merck 81 Co., Inc.</td></tr><tr><td>water solubility</td><td>Slightly soluble</td><td><span class="not-available">Not Available</span></td></tr><tr><td>logP</td><td>-0.3</td><td><span class="not-available">Not Available</span></td></tr><tr><td>pKa</td><td>8.7</td><td><span class="not-available">Not Available</span></td></tr></tbody></table>