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Silanes and silicones

Dichlorodiphenylsilane

Also known as Diphenyldichlorosilane, Silane, dichlorodiphenyl-, Dichloro(diphenyl)silane

CAS 80-10-4Formula C12H10Cl2SiMolar mass 253.20 g/molEC 201-251-0
GHS signal word: Danger. Pictograms: Corrosive, Hazardous to the environment 17 suppliers listed
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Dichlorodiphenylsilane chemical structure, C12H10Cl2Si, CAS 80-10-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
-22 °C
Boiling point
305 °C
Density
1.204 g/cm³ at 25 °C
Flash point
142 °C
HS code
293190
Category
Silanes and silicones
UN number
UN 1769
Illustrative photo, clear liquid in a volumetric flask on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Dichlorodiphenylsilane?

Plain description, key identifiers and synonyms

Diphenyldichlorosilane is a colorless liquid with a pungent odor. It will burn though it may require some effort to ignite. It is decomposed by water to hydrochloric acid with evolution of heat. It is corrosive to metals and tissue.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dichloro(diphenyl)silane
CAS number
80-10-4 CAS number cross-checkedOther or deprecated CAS: 29386-52-5
EC number
201-251-0
Molecular formula
C12H10Cl2Si
UNII
08811ZE689
MDL number
MFCD00000489
InChIKey
OSXYHAQZDCICNX-UHFFFAOYSA-N
InChI
InChI=1S/C12H10Cl2Si/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)[Si](C2=CC=CC=C2)(Cl)Cl

Synonyms

  • Diphenyldichlorosilane
  • Silane, dichlorodiphenyl-
  • Dichloro(diphenyl)silane
  • Diphenylsilicon dichloride
  • Diphenylsilyl dichloride
  • Dichlor-difenylsilan
  • Diphenyl dichlorosilane
  • TSL 8062
  • Benzene, 1,1'-(dichlorosilylene)bis-
  • Silane, dichlorodiphenyl
  • C12H10Cl2Si
  • Dichlorodiphenylsilane, Diphenylsilicon Dichloride, Diphenylsilyl Dichloride, NSC 77110, TSL 8062
  • dichloro-diphenyl-silane
  • Dichlorodi(phenyl)silane
  • Silane, dichloro-diphenyl-
  • Dichlorodiphenylsilane, 97%
  • Dichlorodiphenylsilane, pract
  • UN 1769
  • Diphenyldichlorosilane [UN1769] [Corrosive]
  • 1,1 inverted exclamation markE-(Dichlorosilylene)bis[benzene], Dichlor(diphenyl)silan, Dicloro(difenil)silano

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 liquidexp.
Odour
SHARP, HYDROCHLORIC ACID-LIKE, PUNGENTexp.
Melting point
-22 °Cexp.
Boiling point
305 °Cexp.
Density
1.204 g/cm³ at 25 °Cexp.
Flash point
142 °Cexp.
Solubility
Soluble in ethanol, ethyl ether, acetone, carbon tetrachloride and benzeneexp.
Vapour pressure
VP: 4.986 kPa at 192.1 °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
253.20 g/molcalc.
Exact mass
251.9929 Dacalc.
LogP (octanol/water)
2.72calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
2calc.
Heavy atoms
15calc.
Rings
2calc.
Aromatic rings
2calc.
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, c1ccc([SiH2]c2ccccc2)cc1

c1ccc([SiH2]c2ccccc2)cc1

2 rings, 13 atoms, the Diphenylsilane ring system.

715 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS09: Hazardous to the environment
Hazardous to the environment
132NFPA 704 rating

Hazard statements

  • H314Causes severe skin burns and eye damage.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (14)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P273Avoid release to the environment.
  • 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.
  • 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.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1769
Transport hazard class
8
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

Dichlorodiphenylsilane suppliers

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

All 17 suppliers
17 of 17 offers

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

17 suppliers in 6 countries

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Dichlorodiphenylsilane 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

Intermediate for silicone lubricants.

Production of dimethyldiloxane oligomers.

Industrial uses: Intermediate, Monomers.

Functional uses

  • Chemical reaction regulator

How it is made

Reaction of powdered silicon and chlorobenzene in the presence of copper powder as catalyst.

Reaction of phenylmagnesium chloride with silicon tetrachloride.

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

Frequently asked questions

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

What is Dichlorodiphenylsilane?

Diphenyldichlorosilane is a colorless liquid with a pungent odor. It will burn though it may require some effort to ignite. It is decomposed by water to hydrochloric acid with evolution of heat. It is corrosive to metals and tissue.

What is the CAS number of Dichlorodiphenylsilane?

The CAS registry number of Dichlorodiphenylsilane is 80-10-4. Other or deprecated CAS numbers: 29386-52-5.

What is the molecular formula and weight of Dichlorodiphenylsilane?

The molecular formula of Dichlorodiphenylsilane is C12H10Cl2Si and its molar mass is 253.20 g/mol.

What is Dichlorodiphenylsilane used for?

Intermediate for silicone lubricants. Production of dimethyldiloxane oligomers. Industrial uses: Intermediate, Monomers.

Is Dichlorodiphenylsilane hazardous?

Dichlorodiphenylsilane carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage, toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dichlorodiphenylsilane?

Dichlorodiphenylsilane 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 Dichlorodiphenylsilane?

CompoundList lists 17 suppliers of Dichlorodiphenylsilane in China, United States, Germany, Italy and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dichlorodiphenylsilane?

Suppliers quote Dichlorodiphenylsilane 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 Dichlorodiphenylsilane

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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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