Phosphoric Acid
Phosphoric acid is an inorganic acid used in pharmaceutical formulations primarily as a pH-adjusting agent and acidulant, and has also been used in very dilute concentrations as an antiemetic for nausea and vomiting. It plays a physiological role in buffering systems and serves as a source of phosphate ions used in various electrolyte replacement preparations.
Molecular Weight
97.9950 g/mol
LogP
-2.10
TPSA
77.80 Ų
Lipinski RO5
Pass
Therapeutic Areas
Mechanism of Action
Provides essential ions for maintaining fluid balance, nerve conduction, muscle contraction, and acid-base homeostasis. Supplementation corrects electrolyte imbalances.
Pharmacokinetics (PK)
Pharmacodynamics (PD)
Provides essential ions for maintaining fluid balance, nerve conduction, muscle contraction, and acid-base homeostasis. Supplementation corrects electrolyte imbalances.
2D Structure
Cite this structure
Embed this structure
SMILES
O=P(O)(O)O
InChI
InChI=1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
Molecular Formula
H3O4P
HBD / HBA
3 / 4
Rotatable Bonds
0
Heavy Atoms
5
No targets recorded
Target interaction data is not yet available for this drug.
No interactions recorded
Drug interaction data is not yet available for this compound.
No side effects recorded
Side effect data is not yet available for this drug.
Frequently Asked Questions
Phosphoric acid is an inorganic acid used in pharmaceutical formulations primarily as a pH-adjusting agent and acidulant, and has also been used in very dilute concentrations as an antiemetic for nausea and vomiting. It plays a physiological role in buffering systems and serves as a source of phosphate ions used in various electrolyte replacement preparations.
Provides essential ions for maintaining fluid balance, nerve conduction, muscle contraction, and acid-base homeostasis. Supplementation corrects electrolyte imbalances.
Yes, Phosphoric Acid is an approved drug. It has reached clinical phase 4. It is classified as a Small molecule.
References & Data Sources
- ChEMBL — European Bioinformatics Institute (EBI). CHEMBL1187. Open-access bioactivity database.
- PubChem — National Center for Biotechnology Information (NCBI). CID 1004. Chemical information database.
Data aggregated from publicly available pharmacological databases. Last updated 2026-03-28.
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