CompoundList
Sign in
Fuels and fuel additives

Butyl ether

Also known as Dibutyl ether, Di-n-butyl ether, n-Butyl ether

CAS 142-96-1Formula C8H18OMolar mass 130.23 g/molEC 205-575-3
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant 32 suppliers listed
Get quotes Compare 32 suppliers
Butyl ether chemical structure, C8H18O, CAS 142-96-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
-95.2 °C
Boiling point
140.8 °C
Density
Density (at 20 °C): 0.8 g/cm³
Flash point
37 °C
HS code
290919
Category
Fuels and fuel additives
UN number
UN 1149
Illustrative photo, 200 litre blue HDPE drums of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Butyl ether?

Plain description, key identifiers and synonyms

N-butyl ether appears as a clear colorless liquid with an ethereal odor. Flash point below 141 °F. Less dense than water and insoluble in water. Vapors heavier than air. Irritates the eyes, nose, throat, and respiratory tract.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-butoxybutane
CAS number
142-96-1 CAS number cross-checked
EC number
205-575-3
Molecular formula
C8H18O
UNII
PBM2R52P5G
MDL number
MFCD00009461
InChIKey
DURPTKYDGMDSBL-UHFFFAOYSA-N
InChI
InChI=1S/C8H18O/c1-3-5-7-9-8-6-4-2/h3-8H2,1-2H3
SMILES (canonical and isomeric)
CCCCOCCCC

Synonyms

  • Dibutyl ether
  • Di-n-butyl ether
  • n-Butyl ether
  • Butane, 1,1'-oxybis-
  • Dibutyl oxide
  • Butyl oxide
  • Ether butylique
  • 1,1'-Oxybis(butane)
  • n-Dibutyl ether
  • 1,1'-Oxybisbutane
  • 1-Butoxybutane
  • di-n-butylether
  • 1,1'-oxydibutane
  • butoxybutane
  • butylether
  • dibutylether
  • n-butylether
  • di n-butylether
  • din butyl ether
  • (n-C4H9)2O
  • di-n butyl ether
  • di-1-butyl ether
  • nBu2O
  • di(1-butyl) ether
  • Butane,1'-oxybis-
Show all 35 synonyms
  • di-n-butyl, ether-
  • Bu2O
  • n-Bu2O
  • Di(but-1-yl) ether
  • Di-(1-butyl) ether
  • 4-01-00-01520 (Beilstein Handbook Reference)
  • Dibutyl ether, p.a., 99%
  • Dibutyl ether, anhydrous, 99.3%
  • (C4H9)2O
  • Dibutyl ether (stabilised with BHT)

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
Mild, ethereal odorexp.
Melting point
-95.2 °Cexp.
Boiling point
140.8 °Cexp.
Density
Density (at 20 °C): 0.8 g/cm³exp.
Flash point
37 °Cexp.
Autoignition temperature
194 °Cexp.
Solubility
In water, 300 mg/L at 25 °Cexp.
Vapour pressure
6.01 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
130.23 g/molcalc.
Exact mass
130.1358 Dacalc.
LogP (octanol/water)
2.6calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
6calc.
Heavy atoms
9calc.
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
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
311NFPA 704 rating

Hazard statements

  • H226Flammable liquid and vapour.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H412Harmful 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.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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 1149
Transport hazard class
3
Packing group
III

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

Butyl ether suppliers

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

All 32 suppliers
30 of 30 offers

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

32 suppliers in 10 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Butyl ether price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Solvent for hydrocarbons, fatty materials, extracting agent, used especially for separating metals, solvent purification, organic synthesis (reaction medium).

Solvent ... for esters, gums, hydrocarbons, alkaloids, oils, org acids, & resins.

Has limited use as a solvent in the preparation of Grignard reagents.

Proposed as high-cetane diesel additive.

Industrial uses: Intermediate, Corrosion inhibitor, Solvent.

Functional uses

  • Flavouring and nutrient

How it is made

Available as a by-product in manufacture of butyl esters.

Hydrolysis of butyl bromide at 130-180 °C and 350-700 kPa.

N-Butyl ether is prepared by the dehydration of n-butyl alcohol by sulphuric acid or by catalytic dehydration over ferric chloride, copper sulfate, silica or alumina at high temperatures.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 603-054-00-9

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 Butyl 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 Butyl ether is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Butyl ether?

N-butyl ether appears as a clear colorless liquid with an ethereal odor. Flash point below 141 °F. Less dense than water and insoluble in water. Vapors heavier than air. Irritates the eyes, nose, throat, and respiratory tract.

What is the CAS number of Butyl ether?

The CAS registry number of Butyl ether is 142-96-1.

What is the molecular formula and weight of Butyl ether?

The molecular formula of Butyl ether is C8H18O and its molar mass is 130.23 g/mol.

What is Butyl ether used for?

Solvent for hydrocarbons, fatty materials, extracting agent, used especially for separating metals, solvent purification, organic synthesis (reaction medium). Solvent ... for esters, gums, hydrocarbons, alkaloids, oils, org acids, & resins. Has limited use as a solvent in the preparation of Grignard reagents.

Is Butyl ether hazardous?

Butyl ether carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Butyl ether?

Butyl 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 Butyl ether?

CompoundList lists 32 suppliers of Butyl ether in United States, China, India, Germany and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Butyl ether in India?

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

What is the price of Butyl ether?

Suppliers quote Butyl 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 Butyl ether

Get quotes for Butyl ether

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Butyl ether
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Butyl ether with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/butyl-ether-142-96-1" title="Butyl ether structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Fuels and fuel additives or HS code 290919

32 suppliers
Free quotes, contact stays private
Get quotes