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Chromatography and spectroscopy reagents

Heptane

Also known as n-Heptane, Heptan, Heptyl hydride

CAS 142-82-5Formula C7H16Molar mass 100.21 g/molEC 205-563-8
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant, Serious health hazard, Hazardous to the environment 338 suppliers listed
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Heptane chemical structure, C7H16, CAS 142-82-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
-90.5 °C
Boiling point
98.4 °C
Density
0.6795 g/cm³ at 25 °C
Flash point
-3.9 °C
HS code
290110
Category
Chromatography and spectroscopy reagents
UN number
UN 1206
Illustrative photo, 200 litre blue HDPE drums of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Heptane?

Plain description, key identifiers and synonyms

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.

Heptane is a linear chemical compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
heptane
CAS number
142-82-5 CAS number cross-checkedOther or deprecated CAS: 67290-43-1
EC number
205-563-8
Molecular formula
C7H16
UNII
456148SDMJ
MDL number
MFCD00009544
INCI name
HEPTANE
InChIKey
IMNFDUFMRHMDMM-UHFFFAOYSA-N
InChI
InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
SMILES (canonical and isomeric)
CCCCCCC

Synonyms

  • n-Heptane
  • Heptan
  • Heptyl hydride
  • Dipropyl methane
  • Dipropylmethane
  • Gettysolve-C
  • Skellysolve C
  • Heptanen
  • Eptani
  • normal-Heptane
  • Pentane, ethyl-
  • normal heptane
  • Heptanes
  • heptan-e
  • 2ygu
  • Heptane, Dipropylmethane, Heptyl hydride, NSC 62784, Skellysolve C, n-Heptane
  • high purity heptane
  • pharma grade heptane
  • Heptane, for HPLC
  • n-Heptane, anhydrous
  • industry grade heptane
  • n-Heptane, 99%
  • n-Heptane HPLC grade
  • HPLC Grade n-Heptane
  • n-Heptane, HPLC grade
Show all 30 synonyms
  • Heptane, 99.5%
  • Heptane, technical grade
  • Heptane, anhydrous, 99%
  • Exxsol heptane (Salt/Mix)
  • Heptane, p.a., 95%

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless liquidexp.
Odour
Gasoline-like odorexp.
Melting point
-90.5 °Cexp.
Boiling point
98.4 °Cexp.
Density
0.6795 g/cm³ at 25 °Cexp.
Flash point
-3.9 °Cexp.
Autoignition temperature
285 °Cexp.
Solubility
In water, 3.40 mg/L at 25 °Cexp.
Vapour pressure
4.60 × 10⁺¹ mm Hg at 25 °C /Extrapolated/exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
100.21 g/molcalc.
Exact mass
100.1252 Dacalc.
LogP (octanol/water)
2.98calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
4calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H304May be fatal if swallowed and enters airways.
  • H315Causes skin irritation.
  • H336May cause drowsiness or dizziness.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (26)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P331Do not induce vomiting.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1206
Transport hazard class
3
Packing group
II

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Heptane suppliers

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All 338 suppliers
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Where suppliers are based

338 suppliers in 40 countries

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Heptane price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Standard for octane-rating determinations (pure normal heptane has zero octane number) anesthetic, solvent, organic synthesis, preparation of laboratory reagents.

As standard in testing knock of gasoline engines.

Research chemical.

Industrial uses: Fuel, Fuel agents, Processing aids not otherwise specified, Lubricating agent, Other, Anti-adhesive/cohesive, Flavoring and nutrient, Solvent.

Consumer uses: Intermediate, Pigment, Adhesion/cohesion promoter, Laboratory chemicals, Anti-adhesive/cohesive, Flavoring and nutrient, Solvent.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name HEPTANE(solvent)

Roles

  • eukaryotic metabolite
  • metabolite
  • non-polar solvent
  • plant metabolite
  • solvent

Functional uses

  • Cleaning agent
  • Fragrance
  • Propellants, non-motive (blowing agents)
  • Solvent
  • Viscosity modifier

Cosmetic functions

  • Solvent

How it is made

Fractional distillation of petroleum, purified by rectification.

N-Alkanes having more than six carbon atoms are not isolated individually but as mixtures of several homologues. Suitable sources are the appropriate petroleum distillate fractions, from which the n-paraffins can be isolated in high isomeric purity (greater than or equal to 95% linearity) by selective separation (eg, molecular sieve separation or urea extractive crystallization). (Higher n-Alkanes)

Hydrogenation of 1-heptene

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 601-008-00-2[1]

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Heptane is traded under.

HS 2901.10Indicative HS code

Saturated

World exports in 2024
$8.47B
+23.9% vs 2023, imports $7.66B
2019 to 2024
Top exporters
  1. United States79.8%
  2. Canada10.1%
  3. Germany1.4%
Top importers
  1. China34.6%
  2. United States12.2%
  3. Sweden5.0%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Heptane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Heptane, based on the data on this page

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.

What is the CAS number of Heptane?

The CAS registry number of Heptane is 142-82-5. Other or deprecated CAS numbers: 67290-43-1.

What is the molecular formula and weight of Heptane?

The molecular formula of Heptane is C7H16 and its molar mass is 100.21 g/mol.

What is Heptane used for?

Standard for octane-rating determinations (pure normal heptane has zero octane number) anesthetic, solvent, organic synthesis, preparation of laboratory reagents. As standard in testing knock of gasoline engines. Research chemical.

Is Heptane hazardous?

Heptane carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, may be fatal if swallowed and enters airways, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Heptane?

Heptane is usually classified under HS code 290110 (Saturated). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Heptane?

CompoundList lists 338 suppliers of Heptane in United States, China, India, United Kingdom and 36 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Heptane in India?

61 suppliers in India list Heptane on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Heptane?

Suppliers quote Heptane on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Heptane

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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