1,1,1,3,5,5,5-heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane

EC Number

241-867-7

CAS Number

17928-28-8

Formula

C10H30O3Si4

Tonnage Band

>100 tpa

Regulatory Status

SVHC (Candidate List)

Yes (since Jun 25, 2025)

Authorisation Required

Restricted

Regulatory Pool

Pool 4: Currently under RMOA or risk management

Is 1,1,1,3,5,5,5-heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane banned in the EU?

It is identified as a Substance of Very High Concern (SVHC) and is on the Candidate List since June 25, 2025. It may require authorisation in the future.

External Resources

ECHA Infocard PubChem

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Data sourced from the European Chemicals Agency (ECHA). Information is provided for reference only. Always consult official ECHA records and relevant Safety Data Sheets for regulatory compliance.