Jones, Gurnos’s team published research in Organic Reactions (Hoboken, NJ, United States) in 1997 | CAS: 53860-74-5

6-Methoxybenzofuran-2-carbaldehyde(cas: 53860-74-5) belongs to benzofurans.Formula: C10H8O3Benzofurans containing one furan ring that have been implicated as psychoactive recreational drugs include 6-(2-aminopropyl)benzofuran (6-APB), 5-(2-aminopropyl)benzofuran (5-APB), 5-(2-ethylaminopropyl)benzofuran (5-EAPB), and 5-methylaminopropylbenzofuran (5-MAPB).

The author of 《The Vilsmeier reaction of fully conjugated carbocycles and heterocycles》 were Jones, Gurnos; Stanforth, Stephen P.. And the article was published in Organic Reactions (Hoboken, NJ, United States) in 1997. Formula: C10H8O3 The author mentioned the following in the article:

A review of the article The Vilsmeier reaction of fully conjugated carbocycles and heterocycles. In the experiment, the researchers used 6-Methoxybenzofuran-2-carbaldehyde(cas: 53860-74-5Formula: C10H8O3)

6-Methoxybenzofuran-2-carbaldehyde(cas: 53860-74-5) belongs to benzofurans.Formula: C10H8O3Benzofurans containing one furan ring that have been implicated as psychoactive recreational drugs include 6-(2-aminopropyl)benzofuran (6-APB), 5-(2-aminopropyl)benzofuran (5-APB), 5-(2-ethylaminopropyl)benzofuran (5-EAPB), and 5-methylaminopropylbenzofuran (5-MAPB).

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem