1,1′-[4,6-Dihydroxy-5-[3-(triethoxysilyl)propyl]-1,3-phenylene]bis[1-phenylmethanone]

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

Molecular structure of 166255-23-8
US ProductionCBI
Import Volume2 lbs

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

EPA-registered manufacturers (2)
Momentive Performance Materials
Norquay Technology

Why It Matters

Sectors
Plastics & RubberPaints & Coatings
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • Processing aids, specific to petroleum production in Plastics Product Manufacturing (100%)Processing as a reactant
  • UV stabilizer in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$8.80/gCombi-Blocks, Inc.
CountryUnited States
Pack$220.00 / 25 g
Purity95%
Vendors11 available

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

10 more vendors
VendorCountry$/gPackPurity
A2B Chem LLCUnited States$9.5225 g95%
BLD Pharmatech Ltd.China$10.4825 g95%
AA BLOCKSUnited States$11.9225 g95%
BLD Pharmatech GmbHGermany$15.605 g95%
Ambeed, Inc.United States$15.605 g95%
Aaron Chemicals LLCHong Kong$17.805 g95%
Angene ChemicalChina Hong Kong$20.605 g95%
BLD Pharmatech Co., LimitedUnited States$22.001 g95%
AstaTech (2 weeks)United States$24.2425 g95%
AngeneChina Hong Kong$4266.6730 mg95%

Chemical Identity

CAS166255-23-8
PubChem CID15219596
DTXSIDDTXSID30888757
FormulaC29H34O7Si
Mol. Weight522.7 g/mol
SMILESCCO[Si](CCCC1=C(C(=CC(=C1O)C(=O)C2=CC=CC=C2)C(=O)C3=CC=CC=C3)O)(OCC)OCC

Data Sources

DTXSID308887572026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

152195962026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/15219596/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/15219596.json

166255-23-82026-04-24

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

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

CAS 166255-23-82026-04-25

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

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