# Chloroplatinic acid hydrate

**CAS:** 26023-84-7  
**PubChem CID:** [21953454](https://pubchem.ncbi.nlm.nih.gov/compound/21953454)  
**Molecular formula:** Cl6H4OPt  
**Molar mass:** 427.8 g/mol  
**IUPAC:** hexachloroplatinum(2-);hydron;hydrate  
**SMILES:** `[H+].[H+].O.Cl[Pt-2](Cl)(Cl)(Cl)(Cl)Cl`  
**InChIKey:** `SLIOYUPLNYLSSR-UHFFFAOYSA-J`  
**InChI:** `InChI=1S/6ClH.H2O.Pt/h6*1H;1H2;/q;;;;;;;+4/p-4`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| PSA | 1 Ų |
| Hydrogen bond donors | 3 |
| Hydrogen bond acceptors | 2 |
| Rotatable bonds | 0 |
| Heavy atoms | 8 |

## 3D structure

The molecule contains 12 atoms connected by 8 chemical bonds. Interactive 3D model available at: https://molgod.org/molecule/26023-84-7/

## Synonyms

- Chloroplatinic acid hydrate
- 26023-84-7
- Hexachloroplatinate dihydrogen hydrate
- hexachloroplatinum(2-);hydron;hydrate
- SCHEMBL473268
- AKOS030228460

## Data sources

- [PubChem CID 21953454](https://pubchem.ncbi.nlm.nih.gov/compound/21953454)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=26023-84-7)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=26023-84-7)

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- Canonical: https://molgod.org/molecule/26023-84-7/

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**How to cite:** MolGod.org. "Chloroplatinic acid hydrate (CAS 26023-84-7)." Last modified 2026-09-03. https://molgod.org/molecule/26023-84-7/ — for a chemical fact, cite its primary source (PubChem CID 21953454); for a 3D model file, cite its MolGod ID, the variant and the SHA-256 from its licence record.

*Last updated: 2026-09-03 · Generator: MOL-GOD v3.12.33*