Compound record

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

Also known as TMF-1.5

17928-28-8 · candidate list substance / siloxane · cosmetics

TMF-1.5 SVHC Candidate ListEU monitoringcosmeticsformulation METHYLTRIS(TRIMETHYLSILOXY)SILANEMethyl trimethiconemethyl tris(trimethylsiloxy)silane

Dossier Status Obligations Why Alternatives Changes Similar Sources

CAS 17928-28-8

Formula C10H30O3Si4

Molecular weight 310.68 g/mol

InChIKey RGMZNZABJYWAEC-UHFFFAOYSA-N

Why monitored

Why this substance is monitored in the EU

1,1,1,3,5,5,5-heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane is currently surfaced as candidate list substance in the EU.

The current imported view anchors this substance in CandidateList. The live rationale focuses on vPvB (Article 57e), and this page is designed for fast status checks before deeper source review.

Reason

vPvB (Article 57e)

Open the cross-substance route for this rationale.

Rows behind the rationale

Imported framework context and legal signals

Framework	Status	Listed	Reason	Source
CandidateList	Candidate List substance	25 Jun 2025	vPvB (Article 57e)	Candidate List entry - 1,1,1,3,5,5,5-heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane