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Ferrous sulfate monohydrate

CAS 13463-43-9 · 0/100 · High conf.

Also registered as 1 other CAS number

17375-41-6

Ferrous sulfate monohydrate chemical structure

Concern score

0/100Low concern — well-established and permitted without restriction (FDA GRAS; EU CosIng).
High confidence

Ferrous sulfate monohydrate in plain language

What it is

Also known as Dried ferrous sulfate · Ferrous sulfate exsiccated · Dried ferrous sulphate · Exsiccated ferrous sulfate · IRON(2+) sulfate (1:1) hydrate · IRON(2+) sulphate (1:1) hydrate

Show all 26 names

Iron(2+) sulfate--water (1/1/1) · Sulfuric acid, IRON(2+) salt (1:1), hydrate · iron(2+);sulfate;hydrate · Feromax · Feroritard · Ferro-gradumet · Fespan · FeSO4.H2O · FerroMono · Ferrous Sulphate Monohydrate · Iron sulfate (FeSO4) monohydrate · Iron sulfate monohydrate · Iron( cento) sulfate hydrate · Iron() sulfate hydrate · Iron(2+) sulfate monohydrate · Iron(II) sulfate hydrate · Iron(II) sulfate monohydrate · Sulfuric acid, iron(2+) salt (1:1), monohydrate · Tetucur · UNII-RIB00980VW

What it does

We don't have a plain-language description for Ferrous sulfate monohydrate yet.

Is it a concern?
Low concern: no hazard classifications on record.

Why it's flagged

EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Ferrous sulfate monohydrate appears in these published regulatory listings.

  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for Ferrous sulfate monohydrate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

4 data sources

Where this comes from

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.