The solution stability has not been determined for this product. One paper reports storage of 1 mM stock solutions of TTNPB in 95 % ethanol at - 80 deg C, protected from light in opaque containers or foil wrap.
Le, X.-F., et al., Regulation of AML2/CBFA3 in Hematopoietic Cells through the Retinoic Acid Receptor -Dependent Signaling Pathway. J. Biol. Chem., 274(31), 21651-21658 (1999).