# Phosphoric acid, strontium salt (1:1)

**CAS:** 13450-99-2  
**PubChem CID:** [166809](https://pubchem.ncbi.nlm.nih.gov/compound/166809)  
**Molecular formula:** HO₄PSr  
**Molar mass:** 182.59 g/mol  
**IUPAC:** strontium phosphate  
**SMILES:** `[O-]P(=O)([O-])[O-].[Sr+2]`  
**InChIKey:** `HKSVWJWYDJQNEV-UHFFFAOYSA-K`  
**InChI:** `InChI=1S/H3O4P.Sr/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+2/p-3`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| PSA | 86.3 Ų |
| Hydrogen bond donors | 0 |
| Hydrogen bond acceptors | 4 |
| Rotatable bonds | 0 |
| Heavy atoms | 6 |

## 3D structure

The molecule contains 6 atoms connected by 4 chemical bonds. Interactive 3D model available at: https://molgod.org/molecule/13450-99-2/

## Synonyms

- Strontium phosphate, dibasic
- EINECS 236-615-8
- EC 236-615-8
- RefChem:862772
- DTXCID001024037
- 13450-99-2
- Phosphoric acid, strontium salt (1:1)
- NS00086939

## Data sources

- [PubChem CID 166809](https://pubchem.ncbi.nlm.nih.gov/compound/166809)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=13450-99-2)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=13450-99-2)

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**How to cite:** MolGod.org. "Phosphoric acid, strontium salt (1:1) (CAS 13450-99-2)." Last modified 2026-09-02. https://molgod.org/molecule/13450-99-2/ — for a chemical fact, cite its primary source (PubChem CID 166809); 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*