Chemical substance record

Iron(2+) sulfate monohydrate

17375-41-6Fe.H₂O.O₄S169.923 g/mol

Salt and Compound WithChEBI source record

A hydrate that is the monohydrate form of iron(2+) sulfate. It is obtained from the heptahydrate by heating above 65°C. It is used as a source of iron in the treatment of iron-deficiency anaemia (generally in solid-dosage treatments; for liquid-dosage treatments, the heptahydrate is normally used). — ChEBI

Safety references

Safety documents & references

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Identity & molecular properties

Source-linked values

CAS number	17375-41-6	ChEBI ↗
Molecular formula	Fe.H₂O.O₄S	ChEBI ↗
Molar mass	169.923 g/mol	ChEBI ↗
Monoisotopic mass	169.89723 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:75834	ChEBI ↗

Cross-source molecular data

PubChem

Molar mass	169.93 g/mol	PubChem ↗
Exact mass	169.897230 Da	PubChem ↗

PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.

Names & structural identifiers

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Source preferred name

iron(2+) sulfate monohydrate

IUPAC name

iron(2+) sulfate--water (1/1)

InChIKey

XBDUTCVQJHJTQZ-UHFFFAOYSA-L

SMILES

O.O=S(=O)([O-])[O-].[Fe+2]

InChI

InChI=1S/Fe.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2

Names & synonyms

FeromaxFeroritardFerro-GradumetFespaniron(2+) sulfate--water (1/1)Tetucur

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

iron molecular entityChEBI parent class · 24873 ↗hydrateChEBI parent class · 35505 ↗

hydrate

Roles recorded in ChEBI

nutraceuticalreducing agentanti-anaemic agent

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Mass ↔ amount of substance

Calculated from sourced mass

Amount

Input unit

Equivalent amount

0.00588502 mol

Uses 169.923 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions

O

Oxygen · 5 atoms

47.08%

Fe

Iron · 1 atom

32.86%

S

Sulfur · 1 atom

18.87%

H

Hydrogen · 2 atoms

1.19%

Calculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.

Research & patent references

Selected source associations

A comparative trial of a new, fast-release iron capsule ("Eryfer") and a slow-release tablet ('Ferro-Gradumet') in iron-deficiency anaemia. ↗Current medical research and opinion · 1975 · PMID 1149482

A comparative trial of haematinic supplements in pregnancy. ↗The Medical journal of Australia · 1977 Apr 2 · PMID 865369

US3882251 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:75834

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

Additional molecular descriptorsNCBI PubChem · CID 62712 · retrieved 2026-09-27

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.

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