# Ceric ammonium sulfate

**CAS:** 7637-03-8  
**PubChem CID:** [151472](https://pubchem.ncbi.nlm.nih.gov/compound/151472)  
**Molecular formula:** H₈CeN₂O₁₂S₃  
**Molar mass:** 464.4 g/mol  
**IUPAC:** diazanium;cerium(4+);trisulfate  
**SMILES:** `[NH4+].[NH4+].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Ce+4]`  
**InChIKey:** `IPLMNKLLGMDMKO-UHFFFAOYSA-J`  
**InChI:** `InChI=1S/Ce.2H3N.3H2O4S/c;;;3*1-5(2,3)4/h;2*1H3;3*(H2,1,2,3,4)/q+4;;;;;/p-4`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| PSA | 268 Ų |
| Hydrogen bond donors | 2 |
| Hydrogen bond acceptors | 12 |
| Rotatable bonds | 0 |
| Heavy atoms | 18 |

## 3D structure

The molecule contains 26 atoms connected by 20 chemical bonds. Interactive 3D model available at: https://molgod.org/molecule/7637-03-8/

## Synonyms

- Ceric ammonium sulfate
- 7637-03-8
- Sulfuric acid, ammonium cerium(4+) salt (4:4:1)
- ceric ammonium sulphate
- RefChem:575166
- DTXCID701030920
- 231-567-4
- Diammonium cerium(4+) trisulphate
- diazanium;cerium(4+);trisulfate
- 14638-69-8

## Data sources

- [PubChem CID 151472](https://pubchem.ncbi.nlm.nih.gov/compound/151472)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=7637-03-8)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=7637-03-8)

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- Canonical: https://molgod.org/molecule/7637-03-8/

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**How to cite:** MolGod.org. "Ceric ammonium sulfate (CAS 7637-03-8)." Last modified 2026-09-02. https://molgod.org/molecule/7637-03-8/ — for a chemical fact, cite its primary source (PubChem CID 151472); for a 3D model file, cite its MolGod ID, the variant and the SHA-256 from its licence record.

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