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Alcohols and polyols

Sodium methoxide

Also known as Sodium methanolate, Sodium methylate, Methoxysodium

CAS 124-41-4Formula CH3NaOMolar mass 54.02 g/molEC 204-699-5
GHS signal word: Danger. Pictograms: Flammable, Corrosive 151 suppliers listed
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Sodium methoxide chemical structure, CH3NaO, CAS 124-41-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Amorphous, free flowing powder
Melting point
>50
Density
0.45 g/mL at 20 °C, apparent density (packing weight) 0.60 g/mL
Solubility
Solubility in water: reaction
HS code
290511
Category
Alcohols and polyols
UN number
UN 1431
Illustrative photo, 25 kg white woven sacks of powder on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Sodium methoxide?

Plain description, key identifiers and synonyms

Sodium methylate is a white amorphous powder. It reacts with water to form sodium hydroxide, a corrosive material, and methyl alcohol, a flammable liquid. The heat from this reaction may be sufficient to ignite surrounding combustible material or the sodium methylate itself if the water is present in only small amounts. It is used to process edible fats and oils, and to make other chemicals.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
sodium methanolate
CAS number
124-41-4 CAS number cross-checked
EC number
204-699-5
Molecular formula
CH3NaO
UNII
IG663U5EMC
MDL number
MFCD00012179
InChIKey
WQDUMFSSJAZKTM-UHFFFAOYSA-N
InChI
InChI=1S/CH3O.Na/c1-2;/h1H3;/q-1;+1
SMILES (canonical and isomeric)
C[O-].[Na+]

Synonyms

  • Sodium methanolate
  • Sodium methylate
  • Methoxysodium
  • Methanol, sodium salt
  • Feldalat NM
  • Metilato sodico
  • Methylate de sodium
  • Methanol, sodium salt (1:1)
  • Sodium methylate, dry
  • sodium, methanolate
  • Sodium methoxide, 25% in methanol
  • sodiummethanolate
  • Sodium Methoxide [5M(28%) in MeOH]
  • sodiummethoxide
  • sodiummethylate
  • sodium methyate
  • Sodium methylat
  • sodium mehtylate
  • sodium-methoxide
  • sodium-methylate
  • natrium methoxide
  • sodium methanolat
  • MeONa
  • NaOMe
  • sodium -methoxide
Show all 33 synonyms
  • sodium meth-oxide
  • sodium methox-ide
  • CH3NaO
  • CH3ONa
  • MeO-Na+
  • 0.1M Sodium methoxide
  • Sodium methoxide, 30% in methanol
  • Sodium methoxide, 25 wt.% in methanol

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
Amorphous, free flowing powderexp.
Melting point
>50exp.
Density
0.45 g/mL at 20 °C, apparent density (packing weight) 0.60 g/mLexp.
Autoignition temperature
240 °Cexp.
Solubility
Solubility in water: reactionexp.

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
54.02 g/molcalc.
Exact mass
54.0082 Dacalc.
LogP (octanol/water)
-4.02calc.
Topological polar surface area
23.06 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
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
GHS05: Corrosive
Corrosive

Hazard statements

  • H251Self-heating, may catch fire.
  • H314Causes severe skin burns and eye damage.
Precautionary statements (17)
  • P235Keep cool.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • 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.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P407Maintain air gap between stacks or pallets.
  • P410Protect from sunlight.
  • P413Store bulk masses at temperatures not exceeding the specified limit.
  • P420Store separately.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1431
Transport hazard class
4.2
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

Sodium methoxide suppliers

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All 151 suppliers
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Where suppliers are based

151 suppliers in 24 countries

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Sodium methoxide 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

Alkaline catalyst used in the production of biodiesel grade methyl esters.

In organic synthesis.

Condensation reactions, catalyst for treatment of edible fats and oils, especially lard, intermediate for pharmaceuticals, preparation of sodium cellulosate, analytical reagent.

Industrial uses: Pigment, Intermediate, Catalyst, Chemical reaction regulator, Bleaching agent, Processing aids not otherwise specified, Other.

Consumer uses: Pigment, Intermediate.

Functional uses

  • Catalyst

How it is made

Reaction of molten sodium with methyl alcohol or by the reaction of methyl alcohol with sodium amalgam obtained from the electrolysis of brine.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 603-040-00-2[1]

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 Sodium methoxide is traded under.

HS 2905.11Indicative HS code

Methanol (methyl alcohol)

World exports in 2024
$10.6B
+16.6% vs 2023, imports $11.6B
2019 to 2024
Top exporters
  1. Trinidad and Tobago * partner reported16.0%
  2. Oman * partner reported14.1%
  3. Saudi Arabia12.1%
Top importers
  1. China34.3%
  2. Netherlands9.1%
  3. Brazil6.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Sodium methoxide, based on the data on this page

What is Sodium methoxide?

Sodium methylate is a white amorphous powder. It reacts with water to form sodium hydroxide, a corrosive material, and methyl alcohol, a flammable liquid. The heat from this reaction may be sufficient to ignite surrounding combustible material or the sodium methylate itself if the water is present in only small amounts.

What is the CAS number of Sodium methoxide?

The CAS registry number of Sodium methoxide is 124-41-4.

What is the molecular formula and weight of Sodium methoxide?

The molecular formula of Sodium methoxide is CH3NaO and its molar mass is 54.02 g/mol.

What is Sodium methoxide used for?

Alkaline catalyst used in the production of biodiesel grade methyl esters. In organic synthesis. Condensation reactions, catalyst for treatment of edible fats and oils, especially lard, intermediate for pharmaceuticals, preparation of sodium cellulosate, analytical reagent.

Is Sodium methoxide hazardous?

Sodium methoxide carries the GHS signal word "Danger". Main hazards: self-heating, may catch fire, causes severe skin burns and eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Sodium methoxide?

Sodium methoxide is usually classified under HS code 290511 (Methanol (methyl alcohol)). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Sodium methoxide?

CompoundList lists 151 suppliers of Sodium methoxide in China, India, United States, Germany and 20 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Sodium methoxide in India?

33 suppliers in India list Sodium methoxide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Sodium methoxide?

Suppliers quote Sodium methoxide 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 Sodium methoxide

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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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