Thrane, K. E. et al. published their research in Science of the Total Environment in 1986 | CAS: 205-39-0

Naphtho[2,1-b]benzofuran (cas: 205-39-0) belongs to benzofurans derivatives. Benzofuran is a core structural unit found in many naturally occurring compounds with multidirectional biological activities. Substituted benzofurans find applications such as fluorescent sensors, oxidants, in drug discovery, and in another field of chemistry and agriculture.Product Details of 205-39-0

Organic air pollutants in an aluminum reduction plant was written by Thrane, K. E.;Stray, H.. And the article was included in Science of the Total Environment in 1986.Product Details of 205-39-0 This article mentions the following:

The content of organic pollutants, other than polycyclic aromatic hydrocarbons, was determined in air samples collected in the pot room of the Soederberg Al reduction plant. The neutral and the basic fractions of the sample extract were analyzed, and azaarenes, carbazoles, 1-nitropyrene  [5522-43-0], and quinones as well as aromatic aldehydes and ketones were identified by gas chromatog. and mass spectrometry. Selected compounds were quantified, and the results indicate that the concentrations in the pot room air are high. Some of the identified compounds are known to have adverse health effects and should therefore be included whenever air quality studies are carried out inside or near Al plants. In the experiment, the researchers used many compounds, for example, Naphtho[2,1-b]benzofuran (cas: 205-39-0Product Details of 205-39-0).

Naphtho[2,1-b]benzofuran (cas: 205-39-0) belongs to benzofurans derivatives. Benzofuran is a core structural unit found in many naturally occurring compounds with multidirectional biological activities. Substituted benzofurans find applications such as fluorescent sensors, oxidants, in drug discovery, and in another field of chemistry and agriculture.Product Details of 205-39-0

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem