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Silanes and silicones

Dimethoxysilane

CAS 5314-52-3Formula C2H6O2SiMolar mass 90.15 g/molEC 226-171-3
GHS signal word: Danger. Pictograms: Explosive, Flammable, Hazardous to the environment
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Dimethoxysilane chemical structure, C2H6O2Si, CAS 5314-52-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5314-52-3
Formula
C2H6O2Si
Molar mass
90.15 g/mol
EC number
226-171-3
HS code
292090
Category
Silanes and silicones

What is Dimethoxysilane?

Plain description, key identifiers and synonyms

Dimethoxysilane is a chemical substance with the molecular formula C2H6O2Si and a molar mass of 90.15 g/mol. Its CAS registry number is 5314-52-3.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
5314-52-3
EC number
226-171-3
Molecular formula
C2H6O2Si
InChIKey
UXFBJATYVZPQTG-UHFFFAOYSA-N
InChI
InChI=1S/C2H6O2Si/c1-3-5-4-2/h1-2H3
SMILES (canonical and isomeric)
CO[Si]OC

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
90.15 g/molcalc.
Exact mass
90.0137 Dacalc.
LogP (octanol/water)
-0.19calc.
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
GHS01: Explosive
Explosive
GHS02: Flammable
Flammable
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H241Heating may cause a fire or explosion.
  • H242Heating may cause a fire.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (15)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P234Keep only in original packaging.
  • P235Keep cool.
  • P240Ground and bond container and receiving equipment.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P370 + P380 + P375In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.
  • P378Use appropriate media to extinguish.
  • P391Collect spillage.
  • P403Store in a well-ventilated place.
  • P410Protect from sunlight.
  • P411Store at temperatures not exceeding the specified limit.
  • P420Store separately.
  • 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

Dimethoxysilane suppliers

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Dimethoxysilane price

Indicative price range per kg from live supplier offers

No published prices right now

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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 Dimethoxysilane is traded under.

HS 2920.90Indicative HS code

Esters, other than thiophosphoric esters (phosphorothioates) and phosphite esters and their salts…

World exports in 2024
$1.05B
+8.0% vs 2023, imports $1.23B
2019 to 2024
Top exporters
  1. China33.4%
  2. Germany18.8%
  3. United States12.4%
Top importers
  1. United States19.2%
  2. Singapore8.9%
  3. South Korea6.9%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Dimethoxysilane?

Dimethoxysilane is a chemical substance with the molecular formula C2H6O2Si and a molar mass of 90.15 g/mol. Its CAS registry number is 5314-52-3.

What is the CAS number of Dimethoxysilane?

The CAS registry number of Dimethoxysilane is 5314-52-3.

What is the molecular formula and weight of Dimethoxysilane?

The molecular formula of Dimethoxysilane is C2H6O2Si and its molar mass is 90.15 g/mol.

Is Dimethoxysilane hazardous?

Dimethoxysilane carries the GHS signal word "Danger". Main hazards: heating may cause a fire or explosion, heating may cause a fire, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dimethoxysilane?

Dimethoxysilane is usually classified under HS code 292090 (Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dimethoxysilane?

Post a free request on CompoundList and suppliers of Dimethoxysilane will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Dimethoxysilane?

Suppliers quote Dimethoxysilane 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 Dimethoxysilane

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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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