Ghk Cu 50Mg Copper Peptide, Packaging Type: Box, Powder at 18000 box in Nagpur pKa list for alpha hydrogens of beta diketone, beta ketoester, beta diesters. Note the pKa value is for the hydrogen highlighted in red and it may not be the alpha hydrogen. PharmaXChange.info pKa list for alpha hydrogens of carboxylic acids, nitro compounds, amides, aldehydes, ketones, esters, nitriles, amides and alkanes. Note the pKa value is for the hydrogen highlighted in red and it may Experimental theoretical study to determine the pKa values of the ocular hypotensive Dorzolamide from UVVis spectroscopy ScienceDirect