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Silanes and silicones

Dichlorophenylsilane

Also known as Phenyldichlorosilane, dichloro(phenyl)silicon, Benzene, (dichlorosilyl)-

CAS 1631-84-1Formula C6H5Cl2SiMolar mass 176.10 g/molEC 216-635-3
GHS signal word: Danger. Pictograms: Flammable, Corrosive 2 suppliers listed
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Dichlorophenylsilane chemical structure, C6H5Cl2Si, CAS 1631-84-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1631-84-1
Formula
C6H5Cl2Si
Molar mass
176.10 g/mol
Physical form
Liquid
HS code
293190
Category
Silanes and silicones
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Dichlorophenylsilane?

Plain description, key identifiers and synonyms

Dichlorophenylsilane is a chemical substance with the molecular formula C6H5Cl2Si and a molar mass of 176.10 g/mol. Its CAS registry number is 1631-84-1.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
1631-84-1 CAS number cross-checked
EC number
216-635-3
Molecular formula
C6H5Cl2Si
UNII
GT7Y64S7UH
MDL number
MFCD00039296
InChIKey
XNAFLNBULDHNJS-UHFFFAOYSA-N
InChI
InChI=1S/C6H5Cl2Si/c7-9(8)6-4-2-1-3-5-6/h1-5H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)[Si](Cl)Cl

Synonyms

  • Phenyldichlorosilane
  • dichloro(phenyl)silicon
  • Benzene, (dichlorosilyl)-
  • Phenyl(hydrogen)dichlorosilane
  • C6H5Cl2Si
  • Silane, dichloro-phenyl-,

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
Liquidexp.

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
176.10 g/molcalc.
Exact mass
174.9538 Dacalc.
LogP (octanol/water)
1.86calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive

Hazard statements

  • H226Flammable liquid and vapour.
  • H314Causes severe skin burns and eye damage.
Precautionary statements (21)
  • 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.
  • 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.
  • 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 + 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.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • 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

Dichlorophenylsilane suppliers

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

All 2 suppliers

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

2 suppliers in 2 countries

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

Frequently asked questions

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

What is Dichlorophenylsilane?

Dichlorophenylsilane is a chemical substance with the molecular formula C6H5Cl2Si and a molar mass of 176.10 g/mol. Its CAS registry number is 1631-84-1.

What is the CAS number of Dichlorophenylsilane?

The CAS registry number of Dichlorophenylsilane is 1631-84-1.

What is the molecular formula and weight of Dichlorophenylsilane?

The molecular formula of Dichlorophenylsilane is C6H5Cl2Si and its molar mass is 176.10 g/mol.

Is Dichlorophenylsilane hazardous?

Dichlorophenylsilane carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, 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 Dichlorophenylsilane?

Dichlorophenylsilane 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 Dichlorophenylsilane?

CompoundList lists 2 suppliers of Dichlorophenylsilane in China and Thailand. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dichlorophenylsilane?

Suppliers quote Dichlorophenylsilane 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 Dichlorophenylsilane

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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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