Flag of the United StatesAmerican Chemical Independence

Diphenyltetramethylcyclotrisiloxane

CAS 1693-51-2

Cyclotrisiloxane, 2,2,4,4-tetramethyl-6,6-diphenyl-

EPA and Census publish no US supply data for this chemical.

Molecular structure of 1693-51-2
US productionNot reported
Top sourceNo public record

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS1693-51-2
PubChem CIDNot recorded
DTXSIDDTXSID50333976
FormulaC16H22O3Si3
Mol. Weight346.604 g/mol
SMILESC[Si]1(C)O[Si](C)(C)O[Si](O1)(C1=CC=CC=C1)C1=CC=CC=C1

Data Sources

← Back to Dashboard

Brief citations

Diphenyltetramethylcyclotrisiloxane (CAS 1693-51-2) https://chemicalindependence.com/chemical/1693-51-2/ EPA TSCA Inventory: CAS 1693-51-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory