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Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde

CAS 31906-04-4 · 100/100 · High conf.

Also registered as 4 other CAS numbers

56493-02-8 · 80449-98-5 · 1384450-22-9 · 51414-25-6

Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde chemical structure

Concern score

100/100Critical concern based on regulatory listings.
High confidence

Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde in plain language

What it is

Also known as 4-(4-Hydroxy-4-methylpentyl)cyclohex-3-ene-1-carbaldehyde · Liral · 4-(4-Hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde · 4-(4-Methyl-4-hydroxyamyl)cyclohex-3-ene carboxaldehyde · 4-(4-hydroxy-4- methylphenyl) -3-cyclohexen carboxaldehyd · 4-(4-hydroxy-4-methylpentyl)cyclohex-3-enecarbaldehyde

Show all 15 names

GBA90604 · Hicc · Landolal · Lyral · Lyral pound notmixture of isomers · MSK3313 · UNII-QUE43B9Z2Q · hydroxyisohex yl 3- cyclohexene carboxaldehyd e · hydroxymethylpentyl- cyclohexenecarboxaldehyd e

What it does

Used in cosmetics as a fragrance ingredient.

  • Perfuming
  • Fragrance
  • Deodorant
Is it a concern?
Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

3 and 4-(4-Hydroxy-4-methylpentyl)cyclohex-3-ene-1-carbaldehyde A is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

Restrictions first, then routine listings from published regulatory sources.

  • EU Annex II — prohibited
  • EU prohibited in cosmetics

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial

  • EUEC

    Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.

    banned
    View source →
  • EUCosIngActive2 entries
    • Cosmetics Regulation annex II / ref 1380.Source →
    • Restriction: II/1380 From 23 August 2019 cosmetic products containing that substance shall not be placed on the Union market. From 23 August 2021 cosmetic products containing that substance shall not be made available on the Union market.’;Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 176 composition records across product categories including Cleaning products and household care, Personal care, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Fragrance, Deodorizer.
    • EPA CPDat observed this chemical in 176 composition records across product categories including Cleaning products and household care, Personal care, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Fragrance, Deodorizer.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 Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde. 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 Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2026-04-24

    Open →

  • EPA Chemical and Products Database

    exposure · updated September 2013

    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 Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde in a product composition. These are source records, not Greenveil catalog products.

Source records

176

Named organisations

6

Cleaning products and household carePersonal careCleaning and safetyPesticides

Typical roles

PerfumingFragranceDeodorant
See products using Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde →

Catalog

Found in these products

Their ingredient lists include Hydroxyisohexyl 3-CYCLOHEXENE carboxaldehyde; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 136 →Find products without it →