Flammable materials are those that ignite more easily than other materials, whereas those that are harder to ignite or burn less vigorously are combustible.
Tetrahydrofuran is suspected of causing cancer and it is may cause drowsinnes or dizzyness
Tetrahydrofuran may cause injuries to the skin, the eyes or the airways after a single exposure. These injuries may range from small, initially invisible injuries after exposure to weak irritants up to chemical burns after exposure