Requirements: 1. Maintain the original format and structure. 2. The translation should be accurate, fluent, and natural. 3. Maintain professionalism and consistency. 4. Only return the translation result; do not add any explanations. Original text: **Basic Information:** **Molecular Formula:** C₄H₄O₄ **Application Areas:** - **Medicine:** It is a raw material for the production of antidotes such as sodium dimercaptosuccinate and drugs for treating sickle cell anemia, such as ferrous fumarate. It is also used in the synthesis of pharmaceutical ingredients like L-aspartic acid. Fumaric acid and its derivatives have pharmacological effects such as anti-angina, anti-arrhythmia, anti-hypertension, anti-depression, and anti-inflammatory properties. - **Food:** It is a pure-tasting acidulant used in the production of soda, fruit juices, ice cream, and fruit candies. It also prevents mold in foods such as white bread, vegetables, fruits, and fresh meat. Additionally, it can be used as an acidity regulator, acidifier, and antioxidant aid. - **Industry:** It is used in the production of unsaturated resins and alkyd resins, as well as a raw material for electrophoretic paints. The esters of fumaric acid with fatty alcohols, particularly dimethyl fumarate, are novel preservatives and anti-mold agents.