Tinland, Bernard et al. published their research in Theoretica Chimica Acta in 1967 | CAS: 322-46-3

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine heterocycles and their benzo derivatives possess many interesting properties, including chemical reactivity profiles, and have diverse applications in total synthesis, medicine, chemical biology, materials, dyes, and imaging. Pyrazines are chemical compounds (technically called 閳ユ笗ethoxypyrazines閳? found in grape skin and stems that are responsible for many 閳ユ笀reen閳?flavors in wine. Levels of pyrazines are dependent on viticultural practices, climate, and grape variety.Product Details of 322-46-3

Self-consistent field molecular orbital calculations of ultraviolet electronic spectra of azanaphthalenes with the variable 灏?approximation was written by Tinland, Bernard. And the article was included in Theoretica Chimica Acta in 1967.Product Details of 322-46-3 This article mentions the following:

The stable crystal field M.O. calculations of uv electronic spectra of 10 azonaphthalenes with the variable 灏?approximation (K. Nishimoto, et al., 1966) are presented. The transition energies and bond lengths of these mols. were calculated and the results are in satisfactory agreement with experiment In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Product Details of 322-46-3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine heterocycles and their benzo derivatives possess many interesting properties, including chemical reactivity profiles, and have diverse applications in total synthesis, medicine, chemical biology, materials, dyes, and imaging. Pyrazines are chemical compounds (technically called 閳ユ笗ethoxypyrazines閳? found in grape skin and stems that are responsible for many 閳ユ笀reen閳?flavors in wine. Levels of pyrazines are dependent on viticultural practices, climate, and grape variety.Product Details of 322-46-3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem