can't read?
2-Benzofurancarboxaldehyde, also known as benzo[b]-2-furfural, is an α,β-unsaturated aldehyde.
B 6061 (OTTO) 2-Benzofurancarboxaldehyde, 97% Cas 4265-16-1 - used in the preparation of (E)-3-(benzofuran-2′-ylmethylidene)-1-methyl-2-indolinone and 1-(benzofuran-2-yl)methanol.