# Ammonium cerium(IV) sulfate hydrate (CAS 7637-03-8)

**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/molekula/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

## Available in the shop

[Ammonium cerium(IV) sulfate hydrate (CAS 7637-03-8) — Beijing Tong Guang](https://molgod.org/sds-cards/ammonium-ceriumiv-sulfate-hydrate-cas-7637-03-8-beijing-tong-guang/)

## Data sources

- [PubChem CID 151472](https://pubchem.ncbi.nlm.nih.gov/compound/151472)
- [Wikidata](https://www.wikidata.org/wiki/Q72443000)
- [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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*Last updated: 2026-09-02 · Generator: MOL-GOD v3.12.33*