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Fuels and fuel additives

Dimethoxane

Also known as Acetomethoxane, GIV Gard DXN, Ddoa

CAS 828-00-2Formula C8H14O4Molar mass 174.20 g/molEC 212-579-9
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant, Serious health hazard
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Dimethoxane chemical structure, C8H14O4, CAS 828-00-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Liquid
Melting point
<25
Boiling point
186.1 °C
Density
1.0655 @ 20 °C/4 DEG
Flash point
61.1 °C
HS code
293299
Category
Fuels and fuel additives
Illustrative photo, a closed 1000 litre IBC tote in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Dimethoxane?

Plain description, key identifiers and synonyms

Dimethoxane is a member of dioxanes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2,6-dimethyl-1,3-dioxan-4-yl) acetate
CAS number
828-00-2 CAS number cross-checked
EC number
212-579-9
Molecular formula
C8H14O4
UNII
S0859MSI8I
InChIKey
PHMNXPYGVPEQSJ-UHFFFAOYSA-N
InChI
InChI=1S/C8H14O4/c1-5-4-8(11-6(2)9)12-7(3)10-5/h5,7-8H,4H2,1-3H3
SMILES (canonical and isomeric)
CC1CC(OC(O1)C)OC(=O)C

Synonyms

  • Acetomethoxane
  • GIV Gard DXN
  • Ddoa
  • GIV Gard DXN-CO
  • G1V Gard DXN
  • 1,3-Dioxan-4-ol, 2,6-dimethyl-, acetate
  • Acetomethoxan
  • 6-Acetoxy-2,4-dimethyl-1,3-dioxane
  • 2,6-Dimethyl-1,3-dioxan-4-ol acetate
  • 6-Acetoxy-2,4-dimethyl-m-dioxane
  • 2,4-Dimethyl-6-m-dioxanyl acetate
  • Dioxin (bactericide) (Obs.)
  • 2,6-Dimethyl-m-dioxan-4-ol acetate
  • 2,6-Dimethyl-m-dioxan-4-yl acetate
  • 2,4-Dimethyl-6-acetoxy-1,3-dioxane
  • m-Dioxan-4-ol, 2,6-dimethyl-, acetate
  • 6-Acetoxy-2,4-dimethyl-meta-dioxane
  • Acetic acid, 2,6-dimethyl-m-dioxan-4-yl ester
  • 2,6-Dimethyl-meta-dioxan-4-ol acetate
  • 2,6-Dimethyl-meta-dioxan-4-yl acetate
  • Acetic acid, ester with 2,6-dimethyl-m-dioxan-4-ol
  • Dimethoxane, commercial grade
  • 2,6-Dimethyl-1,3-dioxan-4-yl acetate
  • 1,3-Dioxan-4-ol, 2,6-dimethyl-, 4-acetate
  • (2,6-dimethyl-1,3-dioxan-4-yl) acetate
Show all 33 synonyms
  • Dioxin CO
  • Dioxin (bactericide)
  • 2,6-Dimethyl-1,3-dioxan-4-olacetate
  • 2,6-Dimethyl-1,3-dioxan-4-yl acetat
  • 4-19-00-00641 (Beilstein Handbook Reference)
  • 6-Acetoxy-2,4-dimethyl-m-dioxan
  • 2,6-dimethyl-m-dioxan-4-olacetate
  • Dioxan-4-ol, 2,6-dimethyl-, acetate

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
Liquidexp.
Odour
MUSTARD-LIKE ODORexp.
Melting point
<25exp.
Boiling point
186.1 °Cexp.
Density
1.0655 @ 20 °C/4 DEGexp.
Flash point
61.1 °Cexp.
Solubility
MISCIBLE WITH WATER, MANY ORG SOLVENTSexp.

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
174.20 g/molcalc.
Exact mass
174.0892 Dacalc.
LogP (octanol/water)
1.05calc.
Topological polar surface area
44.76 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
1calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.88calc.
Formal charge
0calc.
Stereocentres
3calc.
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, C1COCOC1

C1COCOC1

1 ring, 6 atoms, the 1,3-Dioxane ring system.

1,000 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H226Flammable liquid and vapour.
  • H302 + H332Harmful if swallowed. Harmful if inhaled.
  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
  • H351Suspected of causing cancer.
Precautionary statements (33)
  • P203Obtain, read and follow all safety instructions before use.
  • 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.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • 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.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • 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.
  • P333 + P317If skin irritation or rash 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

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Dimethoxane 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

Preservative for cutting oil, resin emulsions, water-based paints, cosmetics, inks. Effective range of concn: 0.03-0.1%. Gasoline additive.

Antimicrobial agent...used to protect against...spoilage due to bacteria, fungi & yeasts in...water-based paints... It can be used in water-based cutting oils, specialty textile chem emulsions, dyestuffs, fabric softeners, latex emulsions, sizings, adhesives, antistatic lubricants & spinning emulsions @...500-1500 mg/kg.

Functional uses

  • Biocide
  • Preservative

How it is made

Reaction of 2,4-dimethyl-6-hydroxy-meta-dioxane with acetic anhydride in pyridine

C.S. Marvel J Org Chem 4, 252 1939), Spath et al., Ber 76, 57 (1943). Description: Am Perfum Cosmet 77, no 12, 32-34 (1962), C.A. 58,8848c (1963).

Chafetz et al, us patent 3,036,904 (1962 to texaco).

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: 2,6-Dimethyl-1,3-dioxan-4-yl acetate (Dimethoxane), Ref no: 368, Annex ref: II/368

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 Dimethoxane 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 Dimethoxane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Dimethoxane?

Dimethoxane is a member of dioxanes.

What is the CAS number of Dimethoxane?

The CAS registry number of Dimethoxane is 828-00-2.

What is the molecular formula and weight of Dimethoxane?

The molecular formula of Dimethoxane is C8H14O4 and its molar mass is 174.20 g/mol.

What is Dimethoxane used for?

Preservative for cutting oil, resin emulsions, water-based paints, cosmetics, inks. Effective range of concn: 0.03-0.1%. Gasoline additive. Antimicrobial agent...used to protect against...spoilage due to bacteria, fungi & yeasts in...water-based paints...

Is Dimethoxane hazardous?

Dimethoxane carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, harmful if swallowed. harmful if inhaled, harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dimethoxane?

Dimethoxane 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 Dimethoxane?

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What is the price of Dimethoxane?

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Guides for buyers

Practical guides that help when you source, ship or handle Dimethoxane

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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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