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1,5-Dioxaspiro[5.5]undecane, 2-methyl-

CAS 94720-16-8

Also registered as 1 other CAS number

6413-26-9

1,5-Dioxaspiro[5.5]undecane, 2-methyl- chemical structure

Concern score

Not assessed — no hazard data yet.

1,5-Dioxaspiro[5.5]undecane, 2-methyl- in plain language

What it is

On cosmetic ingredient lists it appears as “2-METHYL-1,5-DIOXASPIROUNDECANE”.

Also known as 2-METHYL-1,5-DIOXASPIROUNDECANE · 2-METHYL-1,5-DIOXASPIRO(5.5)UNDECANE · (+/-)-2-METHYL-1,5-DIOXASPIRO(5.5)UNDECANE · (±)-2-METHYL-1,5-DIOXASPIRO(5.5)UNDECANE · 1,5-Dioxaspiro 5.5 undecane, 2-methyl- · 1,5-Dioxaspiro5.5undecane, 2-methyl-

Show all 15 names

2,2-pentamethylene-4-methyl-1,3-dioxan · 2-METHYL-1,5-DIOXASPIRO(5.5)UNDECANE, (+/-)- · 2-METHYL-1,5-DIOXASPIRO(5.5)UNDECANE, (±)- · AKOS006230053 · Auxqnfdmckinec-uhfffaoysa-n · Cyclohexanone 1,3-butylene glycol ketal · Cyclohexanone-1,3-butylene ketal · SBB056719 · UNII-6C00W8M69N

What it does

Used in cosmetics as a fragrance ingredient.

  • Perfuming
  • Fragrance
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. 1,5-Dioxaspiro[5.5]undecane, 2-methyl- appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Fragrance.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Fragrance.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for 1,5-Dioxaspiro[5.5]undecane, 2-methyl-. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for 1,5-Dioxaspiro[5.5]undecane, 2-methyl- yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated 2020-03-19

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed 1,5-Dioxaspiro[5.5]undecane, 2-methyl- in a product composition. These are source records, not Greenveil catalog products.

Named organisations

2

Typical roles

PerfumingFragrance
See products using 1,5-Dioxaspiro[5.5]undecane, 2-methyl- →