Dichloromethylphenylsilane

U.S. production volumes are classified as confidential business information.

Molecular structure of 149-74-6
US ProductionCBI
Import Value$537M
Import VolumeZero
Top SourceChina 39%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 293190 · basket

These shares come from HS customs code 293190, which covers 164 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
CN 39%ChinaDE 17%GermanyIT 9%ItalyIN 7%IndiaJP 7%Japan
EPA-registered manufacturers (1)
The Dow Chemical

Why It Matters

Sectors
Core Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 1 sector as 2 functional roles.

  • Intermediate in All Other Basic Inorganic Chemical Manufacturing (30%)Processing as a reactant
  • Monomers in All Other Basic Inorganic Chemical Manufacturing (70%)Processing as a reactant

Vendor Pricing

$0.34/gA2B Chem LLC
CountryUnited States
Pack$170.00 / 500 g
Purity98%
Vendors3 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

2 more vendors
VendorCountry$/gPackPurity
AA BLOCKSUnited States$0.44500 g98%
AstaTech, IncUnited States$3.1225 g95%

Chemical Identity

CAS149-74-6
PubChem CID9006
DTXSIDDTXSID6029173
FormulaC7H8Cl2Si
Mol. Weight191.13 g/mol
SMILESC[Si](C1=CC=CC=C1)(Cl)Cl

Data Sources

DTXSID60291732026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

90062026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/9006/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/9006.json

149-74-62026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 149-74-62026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv