Sodium Butyrate(Butanoic acid sodium salt) has been reported to cause hyperacetylation of histones due to its role as a histone deacetylase (HDAC) inhibitor (IC50 values are 0.3, 0.4, 0.3, mM for HDAC1, 2 and 7 respectively).

Ciproxifan maleate(FUB-359 maleate) is a highly potent and selective histamin H3-receptor antagonist with IC50 of 9.2 nM, with low apparent affinity at other receptor subtypes.

Esculetin is slightly soluble (in water) and a very weakly acidic compound (based on its pKa). Esculetin can be found in a number of food items such as dandelion, highbush blueberry, wild leek, and opium poppy.