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Polymers and thermoplastics

Methyl propyl ether

Also known as 1-Methoxypropane, Metopryl, Neothyl

CAS 557-17-5Formula C4H10OMolar mass 74.12 g/molEC 209-158-7
GHS signal word: Danger. Pictograms: Flammable 1 supplier listed
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Methyl propyl ether chemical structure, C4H10O, CAS 557-17-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
557-17-5
Formula
C4H10O
Physical form
Liquid
HS code
290919
Category
Polymers and thermoplastics
UN number
UN 2612
Illustrative photo, closed blue jerry cans in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Methyl propyl ether?

Plain description, key identifiers and synonyms

Methyl propyl ether appears as a colorless volatile liquid with an ether-like odor. Less dense than water and insoluble in water. Vapors heavier than air. May be narcotic by inhalation in high concentrations. Used as a solvent and to make other chemicals.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-methoxypropane
CAS number
557-17-5 CAS number cross-checked
EC number
209-158-7
Molecular formula
C4H10O
UNII
37D15RN2Z8
MDL number
MFCD00059399
InChIKey
VNKYTQGIUYNRMY-UHFFFAOYSA-N
InChI
InChI=1S/C4H10O/c1-3-4-5-2/h3-4H2,1-2H3
SMILES (canonical and isomeric)
CCCOC

Synonyms

  • 1-Methoxypropane
  • Metopryl
  • Neothyl
  • Methyl n-propyl ether
  • propyl methyl ether
  • alpha-Methoxy propane
  • Ether, methyl propyl
  • Propoxy methyl ether
  • alpha-Methoxypropane
  • Propane, 1-methoxy-
  • MeOPr
  • 1-Methoxypropane, 97%
  • n-C3H7OCH3
  • Poly(ethylene Glycol) ~30000
  • UN 2612
  • Methyl propyl ether [UN2612] [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

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
74.12 g/molcalc.
Exact mass
74.0732 Dacalc.
LogP (octanol/water)
1.04calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
5calc.
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

Hazard statements

  • H224Extremely flammable liquid and vapour.
Precautionary statements (11)
  • 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.
  • 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.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2612
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

Methyl propyl ether suppliers

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Where suppliers are based

1 supplier in 1 country

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Methyl 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Methyl 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 Methyl 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 Methyl propyl ether, based on the data on this page

What is Methyl propyl ether?

Methyl propyl ether appears as a colorless volatile liquid with an ether-like odor. Less dense than water and insoluble in water. Vapors heavier than air. May be narcotic by inhalation in high concentrations. Used as a solvent and to make other chemicals.

What is the CAS number of Methyl propyl ether?

The CAS registry number of Methyl propyl ether is 557-17-5.

What is the molecular formula and weight of Methyl propyl ether?

The molecular formula of Methyl propyl ether is C4H10O and its molar mass is 74.12 g/mol.

Is Methyl propyl ether hazardous?

Methyl propyl ether carries the GHS signal word "Danger". Main hazards: extremely flammable liquid and vapour. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Methyl propyl ether?

Methyl 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 Methyl propyl ether?

CompoundList lists 1 supplier of Methyl propyl ether in Slovakia. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Methyl propyl ether?

Suppliers quote Methyl 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 Methyl 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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