Kost, A. N.; Minkin, V. I.; Sagitullin, R. S.; Gorbunov, V. I.; Sadekov, I. D. published the artcile< Transfer of substituent effects across the indole ring>, Reference of 112-63-0, the main research area is charge transfer indoles; indoles charge transfer.
The pK values and σ constants (Taft, Hammett, Webster, and Dewar constants) were determined for substituted indole-2-carboxylic acids (I). The transfer of the elec. charges in this ring system is weaker than in carbocyclic systems. The electron-donating groups have very little effect. The relation of structure with the pK of I is best expressed in terms of the Dewar theory.
Zhurnal Organicheskoi Khimii published new progress about Ionization. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics