H

Heptane

IUPAC: heptane

C7H16 Organic Compounds CAS 142-82-5
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Quick Reference
Formula / NotationC7H16
CAS Number142-82-5
Molecular Weight100.20
Melting Point-131 °F (USCG, 1999)
Boiling Point209.1 °F at 760 mmHg (USCG, 1999)
Density0.6838 at 68 °F (USCG, 1999) - Less dense than water; will float
Solubility0.0003 % (NIOSH, 2024)
AppearanceN-heptane is a clear colorless liquids with a petroleum-like odor. Flash point 25 °F. Less dense than water and insoluble in water. Vapors heavier than air.
Also Known Asn-Heptane; 142-82-5; Heptan; Heptyl hydride; Dipropyl methane; Dipropylmethane; Gettysolve-C; Skellysolve C; Heptanen; Eptani
CategoryOrganic Compounds

What is Heptane?

Heptane is a straight-chain alkane with seven carbon atoms. It has been found in Jeffrey pine (Pinus jeffreyi). It has a role as a non-polar solvent and a plant metabolite. It is a volatile organic compound and an alkane.

Formula & Notation

C7H16

IUPAC Name: heptane

Other Names / Synonyms: n-Heptane; 142-82-5; Heptan; Heptyl hydride; Dipropyl methane; Dipropylmethane; Gettysolve-C; Skellysolve C; Heptanen; Eptani

Properties & Characteristics

Appearance: N-heptane is a clear colorless liquids with a petroleum-like odor. Flash point 25 °F. Less dense than water and insoluble in water. Vapors heavier than air.. Molecular formula: C7H16. Molecular weight: 100.20 g/mol. Boiling point: 209.1 °F at 760 mmHg (USCG, 1999). Melting point: -131 °F (USCG, 1999). Density: 0.6838 at 68 °F (USCG, 1999) - Less dense than water; will float. Solubility: 0.0003 % (NIOSH, 2024). Vapor pressure: 37.49 mmHg at 70 °F (USCG, 1999). LogP: 4.4.

Physical Data

PropertyValue
Melting Point-131 °F (USCG, 1999)
Boiling Point209.1 °F at 760 mmHg (USCG, 1999)
Density0.6838 at 68 °F (USCG, 1999) - Less dense than water; will float
Molecular Weight100.20
Solubility0.0003 % (NIOSH, 2024)
AppearanceN-heptane is a clear colorless liquids with a petroleum-like odor. Flash point 25 °F. Less dense than water and insoluble in water. Vapors heavier than air.

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 Heptane
Formula C7H16
CAS Number 142-82-5
Molecular Weight 100.20
Category Organic Compounds
Index All "H" terms
Synonyms n-Heptane; 142-82-5; Heptan; Heptyl hydride; Dipropyl methane; Dipropylmethane; Gettysolve-C; Skellysolve C; Heptanen; Eptani

Frequently Asked Questions

Heptane is a straight-chain alkane with seven carbon atoms. It has been found in Jeffrey pine (Pinus jeffreyi). It has a role as a non-polar solvent and a plant metabolite. It is a volatile organic compound and an alkane.

More "H" Terms

1-Hexanol C6H14O 2-Hydroxyethyl methacrylate C6H10O3 4-Hydroxybenzaldehyde C7H6O2 Haber Process N₂ + 3H₂ ⇌ 2NH₃ | ΔH = −92 kJ/mol Hafnium Hf Half Cell Half Life Half-Cell E = E° − (RT/nF)lnQ Half-Life A(t) = A₀e^(−λt); t½ = ln2/λ Half-Reaction Halide X⁻ (e.g., F⁻, Cl⁻, Br⁻, I⁻) Halogen F₂, Cl₂, Br₂, I₂, At; Group 17; ns²np⁵ valence configuration
View all "H" terms →
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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.

AllChemicals.info — The Online Chemical Glossary | https://allchemicals.info/chemical/heptane

For educational purposes only. Verify all information before use.