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

Current EU status

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

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.

Searchers usually land here for the chemical name, CAS number, abbreviation TMF-1.5, and the question of whether the substance is tied to SVHC, REACH, POPs, or SCIP-style compliance work.

Candidate List substancecurrent statuslatest imported framework state

25 Jun 2025latest anchor datelisted, effective, or checked date

Identity

CAS, formula, aliases, and use context

CAS: 17928-28-8
EC: 241-867-7
Formula: C10H30O3Si4
Molecular weight: 310.68 g/mol
Primary class: candidate list substance
Synonym count: 42

Search-friendly summary

1,1,1,3,5,5,5-heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane (TMF-1.5) , CAS 17928-28-8, is tracked here as a cosmetics substance in the candidate list substance class.

Common names and aliases

METHYLTRIS(TRIMETHYLSILOXY)SILANEMethyl trimethiconemethyl tris(trimethylsiloxy)silaneTrisiloxane, 1,1,1,3,5,5,5-heptamethyl-3-[(trimethylsilyl)oxy]-1,1,1,3,5,5,5-Heptamethyl-3-((trimethylsilyl)oxy)trisiloxane1,1,1,3,5,5,5-Heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane

What to do next

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Status

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Obligations

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Why monitored

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Alternatives

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Changes

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Sources

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Action prompts

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Article duties

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Source check

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