Dodecamethylpentasiloxane

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

Molecular structure of 141-63-9
US ProductionCBI
Import Value$537M
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
EPA-registered importers (3)
Brb North America
Shin Etsu Silicones Of America
The Dow Chemical

Why It Matters

Sectors
Metals & MiningPlastics & RubberCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 4 functional roles.

  • Diluent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • Intermediate in Synthetic Rubber Manufacturing (75%)Processing as a reactant
  • Solvent in All Other Chemical Product and Preparation Manufacturing (150%)Processing—incorporation into formulation, mixture, or reaction product
  • Intermediate in All Other Basic Inorganic Chemical Manufacturing (10%)Processing as a reactant
  • Heat transferring agent in All Other Chemical Product and Preparation Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$1.23/gAaron Chemicals LLC
CountryHong Kong
Pack$123.00 / 100 g
Purity98%
Vendors16 available

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

15 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina Hong Kong$1.33100 g96%
A2B Chem LLCUnited States$1.8025 g98%
Combi-Blocks, Inc.United States$1.90100 g98%
ChemsceneUnited States$2.11100 g
AA BLOCKSUnited States$2.1225 g98%
BLD Pharmatech Ltd.China$2.18100 g98%
Fluorochem UKUnited Kingdom$2.33100 g97%
Ambeed, Inc.United States$2.6825 g98%
Fluorochem EUGermany$2.9025 g97%
BLD Pharmatech Co., LimitedUnited States$3.5010 g98%
BLD Pharmatech GmbHGermany$4.005 g98%
AK Scientific, Inc.United States$5.5010 g98%
Angene International LimitedUnited States$10.9010 g98%
TargetMol ChemicalsChina United States$58.00500 mg97.62%
AngeneChina Hong Kong$4266.6730 mg96%

Chemical Identity

CAS141-63-9
PubChem CID8853
DTXSIDDTXSID1044803
FormulaC12H36O4Si5
Mol. Weight384.84 g/mol
SMILESC[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C

Data Sources

DTXSID10448032026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

88532026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/8853/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/8853.json

141-63-92026-04-24

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

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

CAS 141-63-92026-04-25

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

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