Mesitylene

Mesitylene is an organic compound with the molecular formula C9H12.

Formula
C9H12
Functional group
Alkylarenes
Molar mass
120.19 g/mol
Also known as
1,3,5-trimethylbenzene, sym-Trimethylbenzene, 3,5-Dimethyltoluene, Fleet-X, Trimethylbenzol, Benzene, 1,3,5-trimethyl-

Overview

Mesitylene is an organic compound with the molecular formula C9H12.

Identifiers

Formula
C9H12
Functional group
Alkylarenes
Molar mass
120.19 g/mol
Also known as
1,3,5-trimethylbenzene, sym-Trimethylbenzene, 3,5-Dimethyltoluene, Fleet-X, Trimethylbenzol, Benzene, 1,3,5-trimethyl-
Chemical identifiers
SMILES
CC1=CC(=CC(=C1)C)C
InChI
InChI=1S/C9H12/c1-7-4-8(2)6-9(3)5-7/h4-6H,1-3H3
PubChem CID
7947

Properties

Melting Point
-44.8 °C
Boiling Point
164.7 °C at 760 mm Hg
Relative density (water = 1)
Relative density (water = 1): 0.86
Water solubility
In water, 48.2 mg/L at 25 °C

Related compounds

  • Alkylarenes

    Mesitylene is an organic compound with the molecular formula C9H12.

References

  1. PubChem Compound Summary: Mesitylene (CID 7947)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): Mesitylene — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7947#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 1020

  3. Hazardous Substances Data Bank (HSDB): Mesitylene — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7947#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 1020

  4. ILO-WHO International Chemical Safety Cards (ICSCs): Mesitylene — densityILO-WHO International Chemical Safety Cards (ICSCs)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7947#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred.

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

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7947#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. 586