What is Fumaric Acid CAS 110-17-8?

Fumaric Acid is trans-butenedioic acid, a naturally occurring dicarboxylic acid with the molecular formula C₄H₄O₄. It is supplied as a white crystalline powder or granules and is used in food, resin and chemical synthesis applications.

How is Fumaric Acid different from Maleic Acid?

Fumaric Acid is the trans-isomer of butenedioic acid, while maleic acid is the cis-isomer. Fumaric Acid has a higher melting point and lower water solubility, and the two have different reactivity and end-use properties.

What are the main applications of Fumaric Acid?

It is used as a food and beverage acidulant, in unsaturated polyester and alkyd resins, in pharmaceutical intermediates, in feed additives and as a building block for fumarates and other organic compounds.

Why is Fumaric Acid used in unsaturated polyester resin formulations?

As a polybasic acid component, it helps raise crosslink density and improve hardness, chemical resistance and thermal performance. It is a key esterification feed for resin systems used in fiberglass and composite manufacturing.

What is the typical water solubility of Fumaric Acid?

Fumaric Acid has limited water solubility, typically about 0.6-0.75 g per 100 mL at ambient temperature. It is more soluble in hot water and in ethanol, while being much less soluble in nonpolar solvents.

How should Fumaric Acid be stored and handled?

Keep it in tightly closed containers in a cool, dry, well-ventilated area away from strong oxidizers and incompatible materials. Use dust-control measures and appropriate PPE during weighing and transfer.

Fumaric Acid CAS 110-17-8

Fumaric Acid (trans-butenedioic acid), CAS 110-17-8, is a naturally occurring dicarboxylic acid supplied for food, resin and chemical-synthesis applications. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 110-17-8
Synonyms: trans-butenedioic acid, (E)-butenedioic acid, allomaleic acid, boletic acid, 1,2-ethylenedicarboxylic acid
Einecs: 203-743-0
Molecular Formula: C₄H₄O₄
Grade: Industrial Grade / Food Grade
Package: 25 kg / Drum or 1 kg / Bag

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Product Description

Fumaric Acid, CAS 110-17-8, also known as trans-butenedioic acid, is a naturally occurring dicarboxylic acid; the EC/EINECS number is 203-743-0.

Synonyms: trans-butenedioic acid; (E)-butenedioic acid; allomaleic acid; boletic acid; 1,2-ethylenedicarboxylic acid.

CAS: 110-17-8.

Molecular formula: C₄H₄O₄.

Molecular weight: 116.07.

EC number: 203-743-0.

It is a white crystalline powder or granules with a sour taste, a melting point of about 287–290 °C and a boiling point of about 413 °C.

It has limited water solubility (about 0.6–0.75 g/100 mL at ambient temperature) and is more soluble in hot water and ethanol; the density is about 1.63 g/cm³.

Fumaric acid is the trans-isomer of butenedioic acid, with a higher melting point and lower water solubility than maleic acid (the cis-isomer).

It is used as a food and beverage acidulant in soft drinks, fruit juices and confectionery to impart tartness.

It is used as a polybasic acid in unsaturated polyester and alkyd resins to improve hardness, chemical resistance and thermal performance for fiberglass and composites.

It is used in pharmaceutical intermediates, feed additives and as a building block for fumarates and other organic compounds.

Confirm assay, appearance, melting range, water, related substances, heavy metals and microbial limits; select industrial or food grade.

Store in tightly closed containers in a cool, dry, well-ventilated area away from strong oxidizers; use dust-control measures and suitable PPE.

Confirm the current product-specific specification.

Confirm packaging with the requested quantity and destination requirements.

Document requirements should be confirmed from the current specification, SDS, COA or other product-specific files.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required specification, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Fumaric Acid CAS 110-17-8?

A: Fumaric Acid is trans-butenedioic acid, a naturally occurring dicarboxylic acid with the molecular formula C₄H₄O₄. It is supplied as a white crystalline powder or granules and is used in food, resin and chemical synthesis applications.
Q:
How is Fumaric Acid different from Maleic Acid?

A: Fumaric Acid is the trans-isomer of butenedioic acid, while maleic acid is the cis-isomer. Fumaric Acid has a higher melting point and lower water solubility, and the two have different reactivity and end-use properties.
Q:
What are the main applications of Fumaric Acid?

A: It is used as a food and beverage acidulant, in unsaturated polyester and alkyd resins, in pharmaceutical intermediates, in feed additives and as a building block for fumarates and other organic compounds.
Q:
Why is Fumaric Acid used in unsaturated polyester resin formulations?

A: As a polybasic acid component, it helps raise crosslink density and improve hardness, chemical resistance and thermal performance. It is a key esterification feed for resin systems used in fiberglass and composite manufacturing.
Q:
What is the typical water solubility of Fumaric Acid?

A: Fumaric Acid has limited water solubility, typically about 0.6-0.75 g per 100 mL at ambient temperature. It is more soluble in hot water and in ethanol, while being much less soluble in nonpolar solvents.
Q:
How should Fumaric Acid be stored and handled?

A: Keep it in tightly closed containers in a cool, dry, well-ventilated area away from strong oxidizers and incompatible materials. Use dust-control measures and appropriate PPE during weighing and transfer.

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