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Silanes and silicones

Dimethylsilane

Also known as Silane, dimethyl-, Silane, dimethyl, Dimethylsilyldihydride

CAS 1111-74-6Formula C2H6SiMolar mass 58.16 g/molEC 214-184-7
GHS signal word: Danger. Pictograms: Flammable, Gas under pressure, Serious health hazard 1 supplier listed
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Dimethylsilane chemical structure, C2H6Si, CAS 1111-74-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1111-74-6
Formula
C2H6Si
Molar mass
58.16 g/mol
Physical form
Gas
HS code
293190
Category
Silanes and silicones
Illustrative photo, a small gas cylinder with a regulator in a lab on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Dimethylsilane?

Plain description, key identifiers and synonyms

Dimethylsilane is a chemical substance with the molecular formula C2H6Si and a molar mass of 58.16 g/mol. Its CAS registry number is 1111-74-6.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
1111-74-6 CAS number cross-checked
EC number
214-184-7
Molecular formula
C2H6Si
UNII
8KO1673311
MDL number
MFCD00053656
InChIKey
JZZIHCLFHIXETF-UHFFFAOYSA-N
InChI
InChI=1S/C2H6Si/c1-3-2/h1-2H3
SMILES (canonical and isomeric)
C[Si]C

Synonyms

  • Silane, dimethyl-
  • Silane, dimethyl
  • Dimethylsilyldihydride
  • Dimethylbis(2-(phenylazo)phenyl)silane
  • Dimethylbis[2-(phenylazo)phenyl]silane
  • dimethylsilicon
  • 2-Silapropane
  • (CH3)2SiH2
  • C2H6Si
  • Dimethylsilane (with cylinder)

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
Gasexp.

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
58.16 g/molcalc.
Exact mass
58.0239 Dacalc.
LogP (octanol/water)
0.79calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
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
GHS04: Gas under pressure
Gas under pressure
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H220Extremely flammable gas.
  • H280Contains gas under pressure, may explode if heated.
  • H340May cause genetic defects.
  • H350May cause cancer.
Precautionary statements (11)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P222Do not allow contact with air.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P377Leaking gas fire: do not extinguish, unless leak can be stopped safely.
  • P381In case of leakage, eliminate all ignition sources.
  • P403Store in a well-ventilated place.
  • P405Store locked up.
  • P410 + P403Protect from sunlight. Store in a well-ventilated place.
  • 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

Dimethylsilane 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

1 supplier in 1 country

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Dimethylsilane price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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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

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 Dimethylsilane is traded under.

HS 2931.90Indicative HS code

Organo-inorganic compounds, other than tetramethyl lead, tetraethyl lead, tributyltin compounds…

World exports in 2024
$3.97B
+5.3% vs 2023, imports $3.93B
2019 to 2024
Top exporters
  1. China28.3%
  2. United States15.6%
  3. Germany15.1%
Top importers
  1. United States14.6%
  2. China13.0%
  3. South Korea8.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Dimethylsilane?

Dimethylsilane is a chemical substance with the molecular formula C2H6Si and a molar mass of 58.16 g/mol. Its CAS registry number is 1111-74-6.

What is the CAS number of Dimethylsilane?

The CAS registry number of Dimethylsilane is 1111-74-6.

What is the molecular formula and weight of Dimethylsilane?

The molecular formula of Dimethylsilane is C2H6Si and its molar mass is 58.16 g/mol.

Is Dimethylsilane hazardous?

Dimethylsilane carries the GHS signal word "Danger". Main hazards: extremely flammable gas, contains gas under pressure, may explode if heated, may cause genetic defects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dimethylsilane?

Dimethylsilane is usually classified under HS code 293190 (X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dimethylsilane?

CompoundList lists 1 supplier of Dimethylsilane in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dimethylsilane?

Suppliers quote Dimethylsilane 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 Dimethylsilane

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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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