Naproxen

Naproxen is an organic compound with the molecular formula C14H14O3.

Formula
C14H14O3
Molar mass
230.26 g/mol
Also known as
(2S)-2-(6-methoxynaphthalen-2-yl)propanoic acid, (S)-Naproxen, (+)-Naproxen, Equiproxen, Naprosyn, Naproxene, (S)-(+)-Naproxen

Overview

Naproxen is an organic compound with the molecular formula C14H14O3.

Identifiers

Formula
C14H14O3
Molar mass
230.26 g/mol
Also known as
(2S)-2-(6-methoxynaphthalen-2-yl)propanoic acid, (S)-Naproxen, (+)-Naproxen, Equiproxen, Naprosyn, Naproxene, (S)-(+)-Naproxen
Chemical identifiers
SMILES
C[C@@H](C1=CC2=C(C=C1)C=C(C=C2)OC)C(=O)O
InChI
InChI=1S/C14H14O3/c1-9(14(15)16)10-3-4-12-8-13(17-2)6-5-11(12)7-10/h3-9H,1-2H3,(H,15,16)/t9-/m0/s1
PubChem CID
156391

Properties

Melting Point
155 °C
Water solubility
In water, 15.9 mg/L at 25 °C
Data availability

Not published: Boiling Point, Density.

References

  1. PubChem Compound Summary: Naproxen (CID 156391)National Center for Biotechnology Information · PubChem

    Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

  2. Hazardous Substances Data Bank (HSDB): Naproxen — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/156391#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-386

  3. Hazardous Substances Data Bank (HSDB): Naproxen — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/156391#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Yalkowsky, S.H., He, Yan., Handbook of Aqueous Solubility Data: An Extensive Compilation of Aqueous Solubility Data for Organic Compounds Extracted from the AQUASOL dATAbASE. CRC Press LLC, Boca Raton, FL. 2003., p. 962