C

Cumene

IUPAC: cumene

C9H12 Organic Compounds CAS 98-82-8
Expert Written | Fact Checked | Sources Cited | AllChemicals Editorial Team
Quick Reference
Formula / NotationC9H12
CAS Number98-82-8
Molecular Weight120.19
Melting Point-140.9 °F (USCG, 1999)
Boiling Point306.3 °F at 760 mmHg (USCG, 1999)
Density0.866 at 59 °F (USCG, 1999) - Less dense than water; will float
SolubilityInsoluble (NIOSH, 2024)
AppearanceCumene appears as a clear colorless liquid with an aromatic odor. Less dense than water and insoluble in water. Vapors heavier than air. May be moderately toxic by inhalation, ingestion and skin ab...
Also Known AsIsopropylbenzene; 98-82-8; 2-Phenylpropane; (1-Methylethyl)benzene; Cumol; Benzene, (1-methylethyl)-; Isopropylbenzol; Cumeen; Isopropilbenzene; Isopropylbenzeen
CategoryOrganic Compounds

What is Cumene?

Cumene (C9H12) is an organic compound that appears as Cumene appears as a clear colorless liquid with an aromatic odor. Less dense than water and insoluble in water. Vapors heavier than air. May be moderately toxic by inhalation, ingestion and skin ab.... It has a molecular weight of 120.19 g/mol. Boiling point: 306.3 °F at 760 mmHg (USCG, 1999). Melting point: -140.9 °F (USCG, 1999).

Formula & Notation

C9H12

IUPAC Name: cumene

Other Names / Synonyms: Isopropylbenzene; 98-82-8; 2-Phenylpropane; (1-Methylethyl)benzene; Cumol; Benzene, (1-methylethyl)-; Isopropylbenzol; Cumeen; Isopropilbenzene; Isopropylbenzeen

Properties & Characteristics

Appearance: Cumene appears as a clear colorless liquid with an aromatic odor. Less dense than water and insoluble in water. Vapors heavier than air. May be moderately toxic by inhalation, ingestion and skin ab.... Molecular formula: C9H12. Molecular weight: 120.19 g/mol. Boiling point: 306.3 °F at 760 mmHg (USCG, 1999). Melting point: -140.9 °F (USCG, 1999). Density: 0.866 at 59 °F (USCG, 1999) - Less dense than water; will float. Solubility: Insoluble (NIOSH, 2024). Vapor pressure: 25.85 mmHg (USCG, 1999). LogP: 3.7.

Physical Data

PropertyValue
Melting Point-140.9 °F (USCG, 1999)
Boiling Point306.3 °F at 760 mmHg (USCG, 1999)
Density0.866 at 59 °F (USCG, 1999) - Less dense than water; will float
Molecular Weight120.19
SolubilityInsoluble (NIOSH, 2024)
AppearanceCumene appears as a clear colorless liquid with an aromatic odor. Less dense than water and insoluble in water. Vapors heavier than air. May be moderately toxic by inhalation, ingestion and skin ab...

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Cumene
Formula C9H12
CAS Number 98-82-8
Molecular Weight 120.19
Synonyms Isopropylbenzene; 98-82-8; 2-Phenylpropane; (1-Methylethyl)benzene; Cumol; Benzene, (1-methylethyl)-; Isopropylbenzol; Cumeen; Isopropilbenzene; Isopropylbenzeen

Frequently Asked Questions

Cumene (C9H12) is an organic compound that appears as Cumene appears as a clear colorless liquid with an aromatic odor. Less dense than water and insoluble in water. Vapors heavier than air. May be moderately toxic by inhalation, ingestion and skin ab.... It has a molecular weight of 120.19 g/mol. Boiling point: 306.3 °F at 760 mmHg (USCG, 1999). Melting point: -140.9 °F (USCG, 1999).

More "C" Terms

View all "C" terms →
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.