Heterocycles with Oxygen (O)

Applications (5-Formylfuran-2-yl)boronic Acid is a reagent used in Suzuki cross-couplings with deactivated aryl bromides and activated aryl chlorides.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Trinh, T. N., et al.: Org. Biomol. Chem., 12, 9562-9571 (2014);

Applications 2,3-dihydro-2,2-dimethylbenzofuran-5-carboxylic acid (cas# 123656-34-8) is a useful research chemical.

Applications 2,5-Dihydrofuran is used in the synthesis of Sch 38516 aglycon (fluvirucin B1) an influenza A antibiotic.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Tomita, K. et al.: J. Antibiot., 44, 940 (1991); Houri, A. et al.: J. Am. Chem. Soc., 117, 2943 (1995);

Stability Hygroscopic
Applications Tetrahydrofuran-2,5-dicarboxylic Acid (cas# 2240-81-5) is a compound useful in organic synthesis.

Stability Moisture Sensitive
Applications (3R,4R)-Dihydro-3,4-bis(phenylmethoxy)-2,5-furandione is an intermediate in the synthesis of N-alkenylsuccinimide derivatives.
References Ohwada, J., et al.: Bull. Chem. Soc. Jap., 63, 287 (1990);

Impurity Darifenacin 5 Carboxymethyl Impurity/ Darifenacin Bromo Impurity
Applications 5-(2-Bromoethyl)-2,3-dihydrobenzofuran (cas# 127264-14-6) is a compound useful in organic synthesis.

Applications 2,5-Diacetoxy-2,5-dihydrofuran is used as a reagent to synthesize Mexicanin H, a biologically active sesquiterpene lactone that exhibits antiparasitic activity against Trypanosoma cruzi (a parasite that causes Chagas disease)
References Jimenez-Ortiz, V., et al.: Parasitology, 91, 170 (2005); Romo, J., et al.: Tetrahedron Lett., No vol. given, 1029 (1966)

Applications furan-2,5-dicarbohydrazide (cas# 26095-97-6) is a useful research chemical.

Applications 2-(oxiran-2-yl)furan (cas# 2745-17-7) is a useful research chemical.