Paracetamol

Paracetamol is an organic compound with the molecular formula C8H9NO2.

Formula
C8H9NO2
Molar mass
151.16 g/mol
Also known as
N-(4-hydroxyphenyl)acetamide, acetaminophen, 4-Acetamidophenol, Tylenol, APAP, 4'-Hydroxyacetanilide

Overview

Paracetamol is an organic compound with the molecular formula C8H9NO2.

Identifiers

Formula
C8H9NO2
Molar mass
151.16 g/mol
Also known as
N-(4-hydroxyphenyl)acetamide, acetaminophen, 4-Acetamidophenol, Tylenol, APAP, 4'-Hydroxyacetanilide
Chemical identifiers
SMILES
CC(=O)NC1=CC=C(C=C1)O
InChI
InChI=1S/C8H9NO2/c1-6(10)9-7-2-4-8(11)5-3-7/h2-5,11H,1H3,(H,9,10)
PubChem CID
1983

Properties

Melting Point
168 °C
Boiling Point
>500 °C
Density
1.293 g/cu cm at 21 °C
Water solubility
In water, 14,000 mg/L at 25 °C

Related compounds

  • Phenols

    Paracetamol is an organic compound with the molecular formula C8H9NO2.

  • N-substituted amides

    Paracetamol is an organic compound with the molecular formula C8H9NO2.

References

  1. PubChem Compound Summary: Paracetamol (CID 1983)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): Paracetamol — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/1983#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 94th Edition. CRC Press LLC, Boca Raton: FL 2013-2014, p. 3-314

  3. ILO-WHO International Chemical Safety Cards (ICSCs): Paracetamol — boiling pointILO-WHO International Chemical Safety Cards (ICSCs)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/1983#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred.

  4. Hazardous Substances Data Bank (HSDB): Paracetamol — densityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/1983#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 94th Edition. CRC Press LLC, Boca Raton: FL 2013-2014, p. 3-314

  5. Hazardous Substances Data Bank (HSDB): Paracetamol — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/1983#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, Jain, P. Handbook of Aqueous Solubility Data Second Edition. CRC Press, Boca Raton, FL 2010, p. 492