Pedersen-Bjergaard, Stig et al. published their research in Chemosphere in 1996 | CAS: 205-39-0

Naphtho[2,1-b]benzofuran (cas: 205-39-0) belongs to benzofurans derivatives.Benzofuran is one of the most significant oxygen-containing heterocycles consisting of fused benzene and furan ring, which are widely presented in various naturally occurring and synthetically active compounds. In nature, benzofurans have occupied an important role among the plant phenols & several pharmacologically active compounds.Name: Naphtho[2,1-b]benzofuran

Environmental screening by capillary gas chromatography combined with mass spectrometry and atomic emission spectroscopy was written by Pedersen-Bjergaard, Stig;Semb, Svein Ingar;Vedde, John;Brevik, Einar Magne;Greibrokk, Tyge. And the article was included in Chemosphere in 1996.Name: Naphtho[2,1-b]benzofuran This article mentions the following:

Capillary gas chromatog. (GC) combined with mass spectrometry (MS) and at. emission spectroscopy (AED) was used for a comprehensive investigation of organic micropollutants in a marine sediment. Most compounds were found and identified by a GC-MS library search. The elemental information from GC-AED was used for confirmation purposes, for analyte characterization in cases where GC-MS identification was impossible, and for screening heteroat. components. In addition, GC-AED was effectively used for the quant. part, where the total amount of GC-amenable material, compound classes, and individual components were determined In the experiment, the researchers used many compounds, for example, Naphtho[2,1-b]benzofuran (cas: 205-39-0Name: Naphtho[2,1-b]benzofuran).

Naphtho[2,1-b]benzofuran (cas: 205-39-0) belongs to benzofurans derivatives.Benzofuran is one of the most significant oxygen-containing heterocycles consisting of fused benzene and furan ring, which are widely presented in various naturally occurring and synthetically active compounds. In nature, benzofurans have occupied an important role among the plant phenols & several pharmacologically active compounds.Name: Naphtho[2,1-b]benzofuran

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem