Fumaric acid
Fumaric acid (CAS: 110-17-8), with the linear formula HOOCCH=CHCOOH and a molecular weight of 116.07 g/mol, is a dicarboxylic acid. It is a crystalline organic compound utilized in various industrial applications. Its primary uses include roles as an acidulant in food and beverages, a precursor in the synthesis of polymers and resins, and in certain pharmaceutical formulations. Fumaric acid is also found naturally in plants like onions and ginseng.
- Synonyms
- trans-butenedioic acid(E)-but-2-enedioic acid2-Butenedioic acid (E)-Fumariic acidHelconic acidNaturen

Food and Beverage Acidulant
Fumaric acid serves as an effective acidulant, providing tartness and flavour enhancement in beverages, desserts, and baked goods. Its low hygroscopicity makes it a stable choice for dry mixes.
Polymer and Resin Synthesis
It acts as a crucial building block in the production of unsaturated polyester resins and other polymers. These materials find applications in manufacturing fibreglass-reinforced plastics and coatings.
Pharmaceutical Intermediate
Fumaric acid is employed in certain pharmaceutical preparations. It is notably used in some treatments for psoriasis and as an excipient.
Chemical Synthesis
As an organic building block, it is a versatile reagent in various organic synthesis pathways for creating more complex molecules.
| Molecular weight | 116.07 |
|---|---|
| Linear formula | HOOCCH=CHCOOH |
| Assay | ≥99.0% (T) |
| Grade | puriss. |
| Vapour pressure | 1.7 mmHg (165 °C) |
| Autoignition temp | 1364 °F |
| Melting point | 298-300 °C (subl.)(lit.) |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 230 °C / 446 °F |
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 40 % |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Fumaric acid primarily used for?
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Fumaric acid is primarily used as an acidulant in food and beverages, in the synthesis of polymers and resins, and in certain pharmaceutical applications.
What are the CAS number and formula for Fumaric acid?
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The CAS number for Fumaric acid is 110-17-8 and its linear formula is HOOCCH=CHCOOH.
What grade and purity does Tech Serve Solutions supply for Fumaric acid?
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Tech Serve Solutions supplies Fumaric acid with an assay of ≥99.0% (T) and a 'puriss.' grade. We do not represent this product as USP, BP, or EP grade unless explicitly stated otherwise by verified data.
How should Fumaric acid be handled safely?
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Fumaric acid is classified as a GHS07 warning substance due to H319 (Causes serious eye irritation). When handling, wear a dust mask type N95 (US), eyeshields, and gloves. In case of contact with eyes, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do.
Is Fumaric acid a controlled substance?
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Based on the provided data, Fumaric acid (CAS: 110-17-8) is not listed as a controlled substance.
How is Fumaric acid packed and exported by TSS?
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Fumaric acid is shipped according to international regulations, identified as UN 3077, Class 9, Packing Group III.
How can I request a sample or quote for Fumaric acid?
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To request a sample or obtain a quote for Fumaric acid, please contact our sales team through the website or provide your details for a prompt response.
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