# Sodium Phosphate, Monobasic, Dihydrate

CAS: 13472-35-0
PubChem CID: 23673460
InChIKey: VBJGJHBYWREJQD-UHFFFAOYSA-M
Wikidata: Q27262757
Molecular formula: H₆NaO₆P
Molar mass: 156.01 g/mol
IUPAC: sodium;dihydrogen phosphate;dihydrate
SMILES: O.O.OP(=O)(O)[O-].[Na+]
InChI: InChI=1S/Na.H3O4P.2H2O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+1;;;/p-1
PSA: 82.6 A^2
Hydrogen bond donors: 4
Hydrogen bond acceptors: 6
Rotatable bonds: 0
Heavy atoms: 8
3D structure: 14 atoms, 11 bonds

## About the compound

Sodium Phosphate, Monobasic, Dihydrate is a chemical compound registered under CAS number 13472-35-0. Molecular formula: H₆NaO₆P. Molar mass: 156.01 g/mol. The full systematic IUPAC name is: sodium;dihydrogen phosphate;dihydrate. The molecule contains 14 atoms connected by 11 chemical bonds. 
Chemical data comes from the PubChem (NIH), ChEMBL (EBI) and NIST WebBook databases. GHS statement translations comply with the CLP Regulation (EC 1272/2008). Interactive 3D model and 2D skeleton available at: https://molgod.org/molecule/13472-35-0/


## Synonyms

  - 13472-35-0
  - Sodium dihydrogen phosphate dihydrate
  - Sodium phosphate monobasic dihydrate
  - Monosodium phosphate dihydrate
  - Sodium phosphate, monobasic, dihydrate
  - Phosphoric acid, monosodium salt, dihydrate
  - Sodium phosphate dihydrate
  - Monosodium dihydrogen phosphate dihydrate
  - Sodium phosphate (NaH2PO4) dihydrate
  - UNII-5QWK665956
  - 5QWK665956
  - Sodium Dihydrogen Orthophosphate dihydrate

## Data sources

  - PubChem CID 23673460: https://pubchem.ncbi.nlm.nih.gov/compound/23673460
  - Wikidata: https://www.wikidata.org/wiki/Q27262757
  - NIST WebBook: https://webbook.nist.gov/cgi/cbook.cgi?ID=13472-35-0
  - ChEMBL: https://www.ebi.ac.uk/chembl/g/#search_results/all/query=13472-35-0

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Last updated: 2026-10-17
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