37714-50-4 6-Methoxy-2,3-dimethyl-5-(2-nitroethenyl)benzofuran Benzofuran, 6-methoxy-2,3-dimethyl-5-(2-nitroethenyl)- Dimethyl-2,4 (nitro-2 vinyl)-5 methoxy-6 benzofuranne [French] R 5208