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Heterocyclic building blocks

4-Methylmorpholine

Also known as N-Methylmorpholine, Morpholine, 4-methyl-, 1-Methylmorpholine

CAS 109-02-4Formula C5H11NOMolar mass 101.15 g/molEC 203-640-0
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Harmful or irritant 58 suppliers listed
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4-Methylmorpholine chemical structure, C5H11NO, CAS 109-02-4
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Liquid
Boiling point
115 °C
Density
0.9 @25 °C
HS code
293499
Category
Heterocyclic building blocks
UN number
UN 2535
Illustrative photo, 200 litre blue HDPE drums of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 4-Methylmorpholine?

Plain description, key identifiers and synonyms

4-methylmorpholine appears as a water-white liquid with an ammonia-like odor. Less dense than water and insoluble in water. May be moderately toxic by ingestion, inhalation and skin absorption. Very irritating to skin, eyes, and mucous membranes. Used as a solvent and to make pharmaceuticals.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-methylmorpholine
CAS number
109-02-4 CAS number cross-checked
EC number
203-640-0
Molecular formula
C5H11NO
UNII
11P91ANU5X
MDL number
MFCD00006175
InChIKey
SJRJJKPEHAURKC-UHFFFAOYSA-N
InChI
InChI=1S/C5H11NO/c1-6-2-4-7-5-3-6/h2-5H2,1H3
SMILES (canonical and isomeric)
CN1CCOCC1

Synonyms

  • N-Methylmorpholine
  • Morpholine, 4-methyl-
  • 1-Methylmorpholine
  • Methylmorpholine
  • N-methyl morpholine
  • Morpholine, N-methyl-
  • 4-Methylmorfolin
  • 4-methyl-morpholine
  • NMM
  • N-Methylmorpholin
  • N-methyl morpholine hydrochloride
  • N-methyl-morpholine
  • 4methylmorpholine
  • methyl-morpholine
  • N-methylmopholine
  • N-methylmorphline
  • N-methymorpholine
  • N-metylmorpholine
  • 4-methlmorpholine
  • 4-methylmopholine
  • 4-methymorpholine
  • N-methyhnorpholine
  • N-methyimorpholine
  • Texacat NMM
  • 1-Methylmorpholine, 4-Methylmorpholine, KL 21, N-Methylmorpholine, NMM, NSC 938
Show all 37 synonyms
  • 4-methyimorpholine
  • N-methyl morpholin
  • N-methyl-mopholine
  • N-methyl-morpholin
  • N-metyl-morpholine
  • 4-methyl morpholin
  • N -methylmorpholine
  • N- methylmorpholine
  • N--methylmorpholine
  • N-mehtyl morpholine
  • N-methylmor-pholine
  • N-methylmorpho-line

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.
Boiling point
115 °Cexp.
Density
0.9 @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
101.15 g/molcalc.
Exact mass
101.0841 Dacalc.
LogP (octanol/water)
-0.05calc.
Topological polar surface area
12.47 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
1calc.
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.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1COCCN1

C1COCCN1

1 ring, 6 atoms, the Morpholine ring system.

5,994 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
  • H332Harmful if inhaled.
Precautionary statements (30)
  • 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.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • 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.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • 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 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • 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 2535
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

4-Methylmorpholine suppliers

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

All 58 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

58 suppliers in 7 countries

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4-Methylmorpholine 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

Industrial uses: Catalyst, Corrosion inhibitor, Intermediate.

Consumer uses: Catalyst.

Functional uses

  • Catalyst

Regulatory status

Inventories, regulations and trade controls that list this substance

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 4-Methylmorpholine is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 4-Methylmorpholine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Methylmorpholine, based on the data on this page

What is 4-Methylmorpholine?

4-methylmorpholine appears as a water-white liquid with an ammonia-like odor. Less dense than water and insoluble in water. May be moderately toxic by ingestion, inhalation and skin absorption. Very irritating to skin, eyes, and mucous membranes. Used as a solvent and to make pharmaceuticals.

What is the CAS number of 4-Methylmorpholine?

The CAS registry number of 4-Methylmorpholine is 109-02-4.

What is the molecular formula and weight of 4-Methylmorpholine?

The molecular formula of 4-Methylmorpholine is C5H11NO and its molar mass is 101.15 g/mol.

What is 4-Methylmorpholine used for?

Industrial uses: Catalyst, Corrosion inhibitor, Intermediate. Consumer uses: Catalyst.

Is 4-Methylmorpholine hazardous?

4-Methylmorpholine carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, harmful if swallowed, harmful in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 4-Methylmorpholine?

4-Methylmorpholine is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Methylmorpholine?

CompoundList lists 58 suppliers of 4-Methylmorpholine in China, India, United States, Canada and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 4-Methylmorpholine in India?

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

What is the price of 4-Methylmorpholine?

Suppliers quote 4-Methylmorpholine 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 4-Methylmorpholine

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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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