Xintiandi (301277) announced on December 9th that the company had received the "Approval Notice for the Marketing Application of Ferrous Fumarate API" issued by the National Medical Products Administration. Ferrous fumarate is an iron supplement used to prevent and treat iron-deficiency anemia. It improves hemoglobin synthesis by supplementing iron elements, thus alleviating anemia-related symptoms.
So, what is the relationship between ferrous fumarate and fumaric acid?
Both ferrous fumarate and fumaric acid are important organic chemical products. They have a clear raw material derivation and structural relationship, forming a synergistic upstream and downstream application pattern in the food, feed, and pharmaceutical industries. The core relationship can be summarized as follows: fumaric acid is the core raw material for the synthesis of ferrous fumarate; ferrous fumarate is a derivative salt formed by the combination of fumaric acid and ferrous ions. They share both similarities and significant differences in structure, properties, and applications.
From a chemical structure perspective, both share a core carbon skeleton structure. Fumaric acid, chemically known as trans-butenedioic acid, has the molecular formula C₄H₄O₄ and contains two carboxyl groups (-COOH), making it a typical dibasic organic acid; ferrous fumarate is an organic salt formed by the neutralization reaction between the carboxyl group of fumaric acid and ferrous ions (Fe²⁺), with the molecular formula C₄H₂FeO₄. Essentially, it is the product of the carboxyl hydrogen of fumaric acid being replaced by ferrous ions, retaining the trans-carbon chain skeleton of fumaric acid. This structural inheritance determines their good biocompatibility.
The synthetic derivative relationship is the most crucial industrial connection between the two. The mainstream industrial preparation process of ferrous fumarate uses fumaric acid as the basic raw material, synthesized through a two-step method: first, fumaric acid is neutralized with sodium carbonate to produce sodium fumarate, and then a displacement reaction occurs with ferrous sulfate solution. After refluxing, cooling crystallization, washing, and drying, the finished product is obtained, with a yield of 85%-90%. The purity of fumaric acid directly determines the product quality of ferrous fumarate. Food-grade and pharmaceutical-grade ferrous fumarate must use high-purity fumaric acid as a raw material to avoid impurities affecting the safety of terminal applications. The difference in properties between the two substances stems from the change in ionic form within their structures, leading to complementary applications. Fumaric acid is a white solid powder with strong acidity and a sour taste, primarily used as a food acidulant and a raw material for resin synthesis; ferrous fumarate is a reddish-brown granule or powder with significantly reduced acidity, yet possessing the nutritional function of ferrous ions. It boasts high bioavailability and strong stability, and is primarily used in iron supplements and feed nutritional additives. This difference expands the application scenarios of fumaric acid through derivatization, extending from basic chemical raw materials to the field of nutritional fortification.
In the industrial chain, the two form a close upstream and downstream synergy. The production capacity of fumaric acid directly affects the production cost of ferrous fumarate, while the growth in market demand for ferrous fumarate (such as increased demand for iron supplementation in the feed and pharmaceutical industries) in turn drives the supply of fumaric acid as a raw material. Together, they constitute a typical industrial model of organic acid-metal salt derivatives, playing an important role in the green chemical and nutritional health industries.