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Cosmetic ingredients

Dimethoxymethane

Also known as Methylal, Formal, Methane, dimethoxy-

CAS 109-87-5Formula C3H8O2Molar mass 76.10 g/molEC 203-714-2
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 35 suppliers listed
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Dimethoxymethane chemical structure, C3H8O2, CAS 109-87-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless, clear liquid
Melting point
-105 °C
Boiling point
41.6 °C
Density
0.86 g/cm³
Flash point
-32 °C
HS code
291100
Category
Cosmetic ingredients
UN number
UN 1234
Illustrative photo, a 1000 litre IBC tote of clear liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Dimethoxymethane?

Plain description, key identifiers and synonyms

Dimethoxymethane is an acetal that is the dimethyl acetal derivative of formaldehyde. It is a diether and an acetal. It is functionally related to a methanediol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dimethoxymethane
CAS number
109-87-5 CAS number cross-checked
EC number
203-714-2
Molecular formula
C3H8O2
UNII
7H1M4G2NUE
MDL number
MFCD00008495
INCI name
METHYLAL
InChIKey
NKDDWNXOKDWJAK-UHFFFAOYSA-N
InChI
InChI=1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3
SMILES (canonical and isomeric)
COCOC

Synonyms

  • Methylal
  • Formal
  • Methane, dimethoxy-
  • Formaldehyde dimethyl acetal
  • Dimethyl formal
  • Anesthenyl
  • 2,4-Dioxapentane
  • Methylene dimethyl ether
  • Bis(methoxy)methane
  • Methoxymethyl methyl ether
  • Formaldehyde methyl ketal
  • Metylal
  • Formaldehyde dimethylacetal
  • Dimethoxy methane
  • bis(methyloxy)methane
  • Methylene glycol dimethylether
  • Dimethylformal
  • Methylene Glycol Dimethyl Ether
  • Methylenedioxydimethane
  • Dimethoxymethane 99.5%
  • Dimethylacetal formaldehyde
  • (CH3O)2CH2
  • UN 1234
  • Dimethoxymethane, ReagentPlus(R), 99%
  • Methylal [UN1234] [Flammable liquid]
Show all 27 synonyms
  • Formaldehyde dimethyl acetal, analytical standard
  • Formaldehyde dimethyl acetal, absolute, over molecular sieve (H2O <=0.01%), >=99.0% (GC)

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, clear liquidexp.
Odour
CHLOROFORM ODORexp.
Taste
PUNGENT TASTEexp.
Melting point
-105 °Cexp.
Boiling point
41.6 °Cexp.
Density
0.86 g/cm³exp.
Flash point
-32 °Cexp.
Autoignition temperature
237 °Cexp.
Solubility
MISCIBLE WITH ALCOHOL, ETHER, OILS, SOL IN 3 PARTS WATERexp.
Vapour pressure
400 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
76.10 g/molcalc.
Exact mass
76.0524 Dacalc.
LogP (octanol/water)
0.24calc.
Topological polar surface area
18.46 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
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
GHS07: Harmful or irritant
Harmful or irritant
322WNFPA 704 rating

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (25)
  • 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.
  • 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 1234
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

Dimethoxymethane suppliers

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

All 35 suppliers
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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

35 suppliers in 13 countries

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Dimethoxymethane 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

In perfumery, manufacture artificial resins, reaction medium for grignard & reppe reactions.

Externally as ointment and internally as an anaesthetic and hypnotic.

Special purposes fuel, solvent for adhesives & coatings, in org syntheses.

In methacrylate mfg.

Industrial uses: Intermediate, Propellants, non-motive (blowing agents), Solvent, Monomers.

Consumer uses: Solvent, Propellants, non-motive (blowing agents).

Use classes: Cosmetics.

Cosmetic ingredient, INCI name METHYLAL(solvent)

Functional uses

  • Flavouring and nutrient
  • Solvent

Cosmetic functions

  • Solvent

How it is made

By catalytic vapor-phase oxidn of methanol in presence of small amt of hydrochloric acid, from methanol & formaldehyde. From paraformaldehyde + methanol in presence of calcium chloride + hydrochloric acid.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 Dimethoxymethane is traded under.

HS 2911.00Indicative HS code

Acetals and hemiacetals whether or not with other oxygen function, and their halogenated, sulphonated…

World exports in 2024
$73.2M
+3.8% vs 2023, imports $76.5M
2019 to 2024
Top exporters
  1. Belgium16.9%
  2. China14.5%
  3. Germany13.7%
Top importers
  1. United States13.3%
  2. China12.2%
  3. Spain8.7%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Dimethoxymethane, based on the data on this page

What is Dimethoxymethane?

Dimethoxymethane is an acetal that is the dimethyl acetal derivative of formaldehyde. It is a diether and an acetal. It is functionally related to a methanediol.

What is the CAS number of Dimethoxymethane?

The CAS registry number of Dimethoxymethane is 109-87-5.

What is the molecular formula and weight of Dimethoxymethane?

The molecular formula of Dimethoxymethane is C3H8O2 and its molar mass is 76.10 g/mol.

What is Dimethoxymethane used for?

In perfumery, manufacture artificial resins, reaction medium for grignard & reppe reactions. Externally as ointment and internally as an anaesthetic and hypnotic. Special purposes fuel, solvent for adhesives & coatings, in org syntheses. In methacrylate mfg.

Is Dimethoxymethane hazardous?

Dimethoxymethane carries the GHS signal word "Danger". Main hazards: highly 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 Dimethoxymethane?

Dimethoxymethane is usually classified under HS code 291100 (Acetals and hemiacetals, whether or not with other oxygen function, and their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dimethoxymethane?

CompoundList lists 35 suppliers of Dimethoxymethane in China, United States, India, United Kingdom and 9 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Dimethoxymethane in India?

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

What is the price of Dimethoxymethane?

Suppliers quote Dimethoxymethane 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 Dimethoxymethane

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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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