What is Ferrous Fumarate CAS 141-01-5?

Ferrous Fumarate is the iron(II) salt of fumaric acid, with the molecular formula C4H2FeO4 and a molecular weight of about 169.90 g/mol. It is used as a solid, relatively stable source of iron in nutritional, supplement, and food-fortification formulations.

How much elemental iron does Ferrous Fumarate contain?

The uncoated salt typically contains about 32-33% elemental iron, although specialty direct-compression, microencapsulated, or coated grades may have a lower declared iron content. Buyers should confirm the iron assay for the specific grade because it directly affects dosing and formulation calculations.

Why is Ferrous Fumarate selected for dry solid-dose formulations?

It is practically insoluble in water, non-hygroscopic under normal handling, and relatively stable in dry systems, which helps reduce moisture-related interactions during blending and storage. These properties make it suitable for tablets, capsules, sachets, fortified powders, and mineral premixes where controlled iron delivery is required.

What are the main physical and solubility properties of Ferrous Fumarate?

It is normally a fine reddish-orange to reddish-brown, odorless or nearly odorless powder. Ferrous Fumarate is slightly soluble to practically insoluble in water and very slightly soluble in ethanol, so it is usually dispersed in a dry or solid matrix rather than used as a simple aqueous solution.

What grades and specifications should be checked when sourcing Ferrous Fumarate?

Common reference grades include USP, BP, Ph.Eur., and FCC, with the USP/FCC assay often in the range of 97.0-101.0%. The relevant specification should be chosen based on the target market and application, with particular attention to iron content, particle size, heavy metals, and the need for micronized or direct-compression grades.

Ferrous Fumarate CAS 141-01-5

Ferrous Fumarate CAS 141-01-5 is an iron-containing fumarate salt supplied as a formulation raw material rather than a general industrial intermediate. It is commonly used where a concentrated iron source is needed in nutritional blends, premix systems, and related formulated products. We supply Ferrous Fumarate as a solid powder material for manufacturing and formulation use, with standard export packaging, sample support for evaluation, and routine supply documents including COA, TDS, and SDS. Ferrous Lactate is a related iron salt to compare where a lactate-based iron source is specified instead of fumarate.

CAS: 141-01-5
Synonyms: Ferrous Fumarate; Iron(II) Fumarate
Einecs: 205-447-7
Molecular Formula: C4H2FeO4
Grade: Supply grade can be matched to application and specification requirements
Package: Available in standard export packaging for powder materials; packaging can be arranged according to order volume and logistics requirements

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Product Description

1 Physicochemical Properties

2 Typical Applications

3 Packaging

4 Storage

Physicochemical Properties

Item	Typical Information
Appearance	Reddish orange to reddish brown powder
Odor	Odorless or nearly odorless
Molecular Formula	C4H2FeO4
Molecular Weight	169.90
Solubility	Slightly soluble to practically insoluble in water
pH	Typically evaluated according to the preparation method and supply specification
Density	Bulk density and tapped density may vary with particle form and grade
Thermal Behavior	Decomposes on strong heating rather than showing a simple boiling point profile
Supply Form	Free-flowing powder for formulation and blending use
Physical Characteristics	Iron salt material with good suitability for dry blending and solid formulation systems

Typical Applications

Iron source in nutritional and dietary supplement formulations
Raw material for tablet, capsule, sachet, and premix manufacturing where Ferrous Fumarate is the selected iron salt
Use in fortified powder blends and related dry formulation systems
Formulation use in products requiring a stable iron-containing solid raw material

Specific end uses should be evaluated according to local regulatory requirements, target market, and final product positioning.

For related mineral salt and chelated nutrient pages, review Ferrous Lactate, Magnesium Gluconate, and Chelated Magnesium Amino Acid.

Packaging

Ferrous Fumarate is typically supplied as a powder material in sealed, moisture-protected packaging suitable for solid chemical and formulation raw materials. Bags, fiber drums, or lined containers may be used depending on order quantity, handling preference, and shipping arrangement. The packaging should remain clean, closed, and protected from moisture pickup during storage and transport. Export packaging can be prepared according to shipment requirements and destination conditions.

Storage

Store in a cool, dry, and well-ventilated place in tightly closed original packaging. Keep away from moisture, direct sunlight, and sources of contamination. During storage and transport, maintain package integrity and avoid prolonged exposure to humid conditions that may affect powder handling performance.

FAQ - Technical & Supply Chain

Q:
What is Ferrous Fumarate CAS 141-01-5?

A: Ferrous Fumarate is the iron(II) salt of fumaric acid, with the molecular formula C4H2FeO4 and a molecular weight of about 169.90 g/mol. It is used as a solid, relatively stable source of iron in nutritional, supplement, and food-fortification formulations.
Q:
How much elemental iron does Ferrous Fumarate contain?

A: The uncoated salt typically contains about 32-33% elemental iron, although specialty direct-compression, microencapsulated, or coated grades may have a lower declared iron content. Buyers should confirm the iron assay for the specific grade because it directly affects dosing and formulation calculations.
Q:
Why is Ferrous Fumarate selected for dry solid-dose formulations?

A: It is practically insoluble in water, non-hygroscopic under normal handling, and relatively stable in dry systems, which helps reduce moisture-related interactions during blending and storage. These properties make it suitable for tablets, capsules, sachets, fortified powders, and mineral premixes where controlled iron delivery is required.
Q:
What are the main physical and solubility properties of Ferrous Fumarate?

A: It is normally a fine reddish-orange to reddish-brown, odorless or nearly odorless powder. Ferrous Fumarate is slightly soluble to practically insoluble in water and very slightly soluble in ethanol, so it is usually dispersed in a dry or solid matrix rather than used as a simple aqueous solution.
Q:
What grades and specifications should be checked when sourcing Ferrous Fumarate?

A: Common reference grades include USP, BP, Ph.Eur., and FCC, with the USP/FCC assay often in the range of 97.0-101.0%. The relevant specification should be chosen based on the target market and application, with particular attention to iron content, particle size, heavy metals, and the need for micronized or direct-compression grades.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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