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Ethers, epoxides and acetals

Propyl ether

Also known as Dipropyl ether, n-Propyl ether, Dipropyl oxide

CAS 111-43-3Formula C6H14OMolar mass 102.18 g/molEC 203-869-6
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 3 suppliers listed
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Propyl ether chemical structure, C6H14O, CAS 111-43-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Mobile liquid
Melting point
-122 °C
Boiling point
89 to 91
Density
Relative density (water = 1): 0.7
Flash point
21 °C
HS code
290919
Category
Ethers, epoxides and acetals
UN number
UN 2384
Illustrative photo, 200 litre steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Propyl ether?

Plain description, key identifiers and synonyms

Di-n-propyl ether appears as a colorless liquid with a strong odor. Less dense than water and slightly soluble in water. Vapors are heavier than air. In high concentrations the vapors may be narcotic.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-propoxypropane
CAS number
111-43-3 CAS number cross-checked
EC number
203-869-6
Molecular formula
C6H14O
UNII
42Q250HS4G
MDL number
MFCD00009376
InChIKey
POLCUAVZOMRGSN-UHFFFAOYSA-N
InChI
InChI=1S/C6H14O/c1-3-5-7-6-4-2/h3-6H2,1-2H3
SMILES (canonical and isomeric)
CCCOCCC

Synonyms

  • Dipropyl ether
  • n-Propyl ether
  • Dipropyl oxide
  • 4-Oxaheptane
  • Propane, 1,1'-oxybis-
  • 1,1'-Oxybispropane
  • Ether, di-n-propyl-
  • 1,1'-Oxybis(propane)
  • 1,1'-Oxybis[propane]
  • Di-n-propyl ether
  • 1-Propoxypropane
  • di-N-propylether
  • 1,1'-oxydipropane
  • 1-Propoxypropane #
  • Dipropylether
  • di-n-propyl, ether-
  • Pr2O
  • Dipropyl ether, >=99%
  • (n-C3H7)2O
  • UN 2384
  • Di-n-propyl ether [UN2384] [Flammable liquid]

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
Mobile liquidexp.
Melting point
-122 °Cexp.
Boiling point
89 to 91exp.
Density
Relative density (water = 1): 0.7exp.
Flash point
21 °Cexp.
Autoignition temperature
188 °Cexp.
Solubility
In water, 4.9 × 10⁺³ mg/L at 25 °Cexp.
Vapour pressure
62.5 mm Hg at 25 °Cexp.

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
102.18 g/molcalc.
Exact mass
102.1045 Dacalc.
LogP (octanol/water)
1.82calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
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
311NFPA 704 rating

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H336May cause drowsiness or dizziness.
Precautionary statements (17)
  • 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.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • 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 2384
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

Propyl ether suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 3 suppliers
  • Carbonitalia Srl
    Italy, Vezzano Ligure ManufacturerUnclaimed profile
    Propyl etherGrade, purity and minimum order on request
    Price on request
    View
  • Georganics Ltd.
    Slovakia, BratislavaUnclaimed profile
    Propyl etherGrade, purity and minimum order on request
    Price on request
    View
  • KCS Online
    United States, RensselaerUnclaimed profile
    Propyl etherGrade, purity and minimum order on request
    Price on request
    View

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

3 suppliers in 3 countries

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Propyl ether 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

Propyl ether can be used for the same purposes as diethyl ether.

Industrial uses: Intermediate.

How it is made

Di-n-propyl ether can be prepared from 1-propanol by dehydration with sulfuric acid.

Obtained by heating propyl alcohol with benzenesulfonic acid.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 603-045-00-X[2]

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 Propyl ether is traded under.

HS 2909.19Indicative HS code

Acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives…

World exports in 2024
$10.2B
−8.7% vs 2023, imports $10.4B
2019 to 2024
Top exporters
  1. United States32.0%
  2. China22.3%
  3. Saudi Arabia12.9%
Top importers
  1. Singapore16.5%
  2. Mexico14.8%
  3. Japan14.8%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Propyl ether, based on the data on this page

What is Propyl ether?

Di-n-propyl ether appears as a colorless liquid with a strong odor. Less dense than water and slightly soluble in water. Vapors are heavier than air. In high concentrations the vapors may be narcotic.

What is the CAS number of Propyl ether?

The CAS registry number of Propyl ether is 111-43-3.

What is the molecular formula and weight of Propyl ether?

The molecular formula of Propyl ether is C6H14O and its molar mass is 102.18 g/mol.

What is Propyl ether used for?

Propyl ether can be used for the same purposes as diethyl ether. Industrial uses: Intermediate.

Is Propyl ether hazardous?

Propyl ether carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, may cause drowsiness or dizziness. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Propyl ether?

Propyl ether is usually classified under HS code 290919 (Acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Propyl ether?

CompoundList lists 3 suppliers of Propyl ether in Italy, Slovakia and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Propyl ether?

Suppliers quote Propyl ether 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 Propyl ether

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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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