Thermal degradation of esters/ethers derived from tartaric acid was written by Howell, Bob A.;Sun, Wenxiao. And the article was included in Journal of Thermal Analysis and Calorimetry in 2015.COA of Formula: C5H6ClN This article mentions the following:
Because of the increasing concern about the potential risks to human health presented by phthalate esters and, in particular, di(2-ethylhexyl)phthalate the development of non-toxic, environmentally-friendly plasticizers is rather urgent. Biobased materials derived from an annually renewable source are particularly attractive in this regard. A series of esters/ethers generated from tartaric acid, an edible, renewable byproduct of wine-making, has been synthesized and fully characterized using chromatog., spectroscopic and thermal methods. The thermal degradation characteristics of these compounds have been established using thermogravimetry and IR spectroscopy. These materials are stable to temperatures approaching 200 °C and degrade via elimination processes. They should function as effective plasticizers for a variety of polymeric materials including poly(vinyl chloride). In the experiment, the researchers used many compounds, for example, Pyridinehydrochloride (cas: 628-13-7COA of Formula: C5H6ClN).
Pyridinehydrochloride (cas: 628-13-7) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.COA of Formula: C5H6ClN