CAS ID#: 271-89-6
Affected Organ Systems: Gastrointestinal (Stomach and Intestines, part of the digestive system), Hepatic (Liver), Renal (Urinary System or Kidneys), Respiratory (From the Nose to the Lungs)
Cancer Classification: Please contact NTP, IARC, or EPA with questions on cancer and cancer classification.
Chemical Classification: None
Summary: 2,3-Benzofuran is a colorless, sweet-smelling, oily liquid made by processing coal into coal oil. It may also be formed during other uses of coal or oil.
2,3-Benzofuran is not used for any commercial purposes, but the part of the coal oil that contains 2,3-benzofuran is made into a plastic called coumarone-indene resin. This resin resists corrosion and is used to make paints and varnishes. The resin also provides water resistance and is used in coatings on paper products and fabrics. It is used as an adhesive in food containers and some asphalt floor tiles.
The resin has been approved for use in food packages and as a coating on citrus fruits. We do not know how often the resin is used or whether any 2,3-benzofuran in the coating or packaging gets into the food.
ToxFAQs - Fact sheet that answers the most frequently asked questions about a contaminant and its health effects.
Public Health Statements - Summary about a hazardous substance taken from Chapter One of its respective ATSDR Toxicological Profile.
Toxicological Profile - Succinctly characterizes the toxicologic and adverse health effects information for a hazardous substance.
Addendum to the Profilepdf icon[158 KB] - Addendum to the Toxicological Profile for 2,3-Benzofuran (December 2012)