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Heterocyclic compounds

2-Methyloxetane

Also known as Oxetane, 2-methyl-, 1,3-epoxybutane, 1,3-Butylene oxide

CAS 2167-39-7Formula C4H8OMolar mass 72.11 g/molEC 972-883-9
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant
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2-Methyloxetane chemical structure, C4H8O, CAS 2167-39-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2167-39-7
Formula
C4H8O
Molar mass
72.11 g/mol
Physical form
Liquid
HS code
293299
Category
Heterocyclic compounds
Illustrative photo, closed blue jerry cans in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 2-Methyloxetane?

Plain description, key identifiers and synonyms

2-Methyloxetane is a chemical substance with the molecular formula C4H8O and a molar mass of 72.11 g/mol. Its CAS registry number is 2167-39-7.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-methyloxetane
CAS number
2167-39-7 CAS number cross-checked
EC number
972-883-9
Molecular formula
C4H8O
UNII
05JH3GJ6W9
InChIKey
FZIIBDOXPQOKBP-UHFFFAOYSA-N
InChI
InChI=1S/C4H8O/c1-4-2-3-5-4/h4H,2-3H2,1H3
SMILES (canonical and isomeric)
CC1CCO1

Synonyms

  • Oxetane, 2-methyl-
  • 1,3-epoxybutane
  • 1,3-Butylene oxide
  • 5-17-01-00054 (Beilstein Handbook Reference)
  • 2Methyloxetan
  • 2Methyloxetane
  • Oxetane, 2methyl
  • 1,3Butylene oxide
  • Butane, 1,3epoxy
  • 1Methyltrimethylene oxide
  • Oxetane, 2-methyl-(9CI)
  • 2-Methyloxetane, (+-)-
  • 1-Methyltrimethylene oxide
  • Butane, 1,3-epoxy-
  • (2R)-2-Methyloxetane
  • 2-Methyloxetan
  • 2-Methyloxetane, (+/-)-

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

Physical form
Liquidexp.

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
72.11 g/molcalc.
Exact mass
72.0575 Dacalc.
LogP (octanol/water)
0.8calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
5calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1COC1

C1COC1

1 ring, 4 atoms, the Oxetane ring system.

2,079 other chemicals share this scaffold

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
322WNFPA 704 rating

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (28)
  • 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.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • 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).
  • P330Rinse mouth.
  • 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.

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

2-Methyloxetane suppliers

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2-Methyloxetane 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

How it is made

Simple monoepoxy compounds such as ... butylene ... oxides may be prepared commercially from corresponding unsaturated aliphatic hydrocarbon through intermediate formation of chlorohydrin. Chlorohydrin is then treated with alkali to form epoxide. (Butylene oxides)

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2-Methyloxetane is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 2-Methyloxetane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-Methyloxetane, based on the data on this page

What is 2-Methyloxetane?

2-Methyloxetane is a chemical substance with the molecular formula C4H8O and a molar mass of 72.11 g/mol. Its CAS registry number is 2167-39-7.

What is the CAS number of 2-Methyloxetane?

The CAS registry number of 2-Methyloxetane is 2167-39-7.

What is the molecular formula and weight of 2-Methyloxetane?

The molecular formula of 2-Methyloxetane is C4H8O and its molar mass is 72.11 g/mol.

Is 2-Methyloxetane hazardous?

2-Methyloxetane carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, harmful if swallowed, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-Methyloxetane?

2-Methyloxetane is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2-Methyloxetane?

Post a free request on CompoundList and suppliers of 2-Methyloxetane will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 2-Methyloxetane?

Suppliers quote 2-Methyloxetane 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 2-Methyloxetane

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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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