# The full range of iron oxide yellow products are produced, providing applications such as building material coloring, industrial coatings, plastics and rubber, art pigments, etc. (CAS 51274-00-1)

**CAS:** 51274-00-1  
**PubChem CID:** [23320441](https://pubchem.ncbi.nlm.nih.gov/compound/23320441)  
**Molecular formula:** FeH3O3  
**Molar mass:** 106.87 g/mol  
**IUPAC:** iron(3+);oxygen(2-);hydroxide;hydrate  
**SMILES:** `O.[OH-].[O-2].[Fe+3]`  
**InChIKey:** `LDHBWEYLDHLIBQ-UHFFFAOYSA-M`  
**InChI:** `InChI=1S/Fe.2H2O.O/h;2*1H2;/q+3;;;-2/p-1`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| PSA | 3 Ų |
| Hydrogen bond donors | 2 |
| Hydrogen bond acceptors | 3 |
| Rotatable bonds | 0 |
| Heavy atoms | 4 |

## Synonyms

- Ferric oxide Yellow
- EX438O2MRT
- C.I. 77492
- RefChem:1080569
- 51274-00-1
- Yellow iron oxide
- Ferric oxide, yellow
- Bayferrox 920
- UNII-EX438O2MRT
- Iron hydroxide oxide yellow

## Available in the shop

[The full range of iron oxide yellow products are produced, providing applications such as building material coloring, industrial coatings, plastics and rubber, art pigments, etc. (CAS 51274-00-1) — Anhui Eapearl](https://molgod.org/sds-cards/the-full-range-of-iron-oxide-yellow-products-are-produced-providing-applications-such-as-building-material-coloring-industrial-coatings-plastics-and-rubber-art-pigments-etc-cas-51274-00-1/)

## Data sources

- [PubChem CID 23320441](https://pubchem.ncbi.nlm.nih.gov/compound/23320441)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=51274-00-1)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=51274-00-1)

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*Last updated: 2026-09-02 · Generator: MOL-GOD v3.12.33*