AM1-44 is a version of AM1-43 with improved fixability. The dye can also be used as a general probe for following endocytosis. AM1-44 probe functions similarly as AM1-43, except that AM1-44 has lipophilic tails that are each one carbon longer than those of AM1-43, resulting in better fixability.
<ul>
<li>&lamba;_Ex/&lamba;_Em: 510/625 nm (in MeOH); 480/598 nm (in membranes)</li>
<li>Red solid soluble in water</li>
<li>C₃₁H₅₂Cl₃N₄</li>
<li>MW: 587.5</li>
</ul>