Is T-BUTYL ALCOHOL safe to use in EU cosmetics?

T-BUTYL ALCOHOL is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What other records share CAS 75-65-0?

CAS 75-65-0 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

How do I check if my formula contains T-BUTYL ALCOHOL?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 3847815/10/2010

T-BUTYL ALCOHOL

2-Methylpropan-2-ol

T-BUTYL ALCOHOL is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

INCI Checker Compare all markets Search similar

Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

Markets and their official sources Search every market for this name

Chemical identity and properties

PubChem 2D chemical structure for CAS 75-65-0

CAS 75-65-0PubChem CID 6386

tert-Butanol

Tert-butanol is a tertiary alcohol alcohol that is isobutane substituted by a hydroxy group at position 2. It has a role as a human xenobiotic metabolite. It derives from a hydride of an isobutane. — ChEBI

IUPAC name: 2-methylpropan-2-ol

Molecular formula: C4H10O
Molecular weight: 74.12 g/mol
Exact mass: 74.073164938 Da
XLogP3: 0.5
Topological polar surface area: 20.2 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

tert-Butyl alcohol2-Methyl-2-propanolt-ButanolT-BUTYL ALCOHOL1,1-DimethylethanolTrimethylcarbinolt-Butyl hydroxideTrimethyl carbinol

16 more reported names

Trimethyl methanolTertiary-Butyl AlcoholTrimethylmethanolButanol tertiaire2-Propanol, 2-methyl-ArconolAlcool butylique tertiairetertiary butanolMethanol, trimethyl-tertiary Butyl Alcoholtert Butanolt-Butyl alchoholtert Butyl AlcoholNCI-C55367Alcohol, tert-Butylt-Butylalkohol

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:45895
ChEMBL:CHEMBL16502
EPA DTXSID:DTXSID8020204
PubMed:29134718
PubMed:28321044
PubMed:25817889
PubMed:23088334
PubMed:23021317
PubMed:23009796
PubMed:22974228
PubMed:22948733
PubMed:22946784
PubMed:22903066
PubMed:22892050
PubMed:22885237

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for T-BUTYL ALCOHOL

INCI name

T-BUTYL ALCOHOL

Description

2-Methylpropan-2-ol

Record provenance

Inventory reference: 38478
Imported identity: T-BUTYL ALCOHOL
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for T-BUTYL ALCOHOL

Browse

Browse EU annexes

Explore Annex II–VI to see which substances are prohibited, restricted or permitted under specific conditions.

Search annex entries

Search the annex database for entries matching T-BUTYL ALCOHOL or related substances.

Key data

CAS

75-65-0

200-889-7

Restriction

—

Function

DENATURANT: Rendering cosmetics unpalatable. Mostly added to cosmetics containing ethyl alcohol to make it unsuitable for ingestion.
PERFUMING: Used for perfume and aromatic raw materials.
SOLVENT: Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#28346 · T-BUTYL ALCOHOL

Ingredients with overlapping formulation functions

SODIUM LAURYL SULFATECLEANSING, DENATURANT, FOAMING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

SODIUM MENTHYL SUCCINATEASTRINGENT, DENATURANT, FLAVOURING, ORAL CARE

SODIUM SALICYLATEDENATURANT, PRESERVATIVE

SUCROSE OCTAACETATEDENATURANT, FRAGRANCE

THYMOLDENATURANT, FRAGRANCE, HAIR DYEING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How T-BUTYL ALCOHOL appears in the CosIng inventory

The CosIng inventory lists T-BUTYL ALCOHOL as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

T-BUTYL ALCOHOL is also tagged with 3 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

T-BUTYL ALCOHOL is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, T-BUTYL ALCOHOL carries the following function designation(s):

CAS 75-65-0 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

View CAS records

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Open INCI Checker

Source note for T-BUTYL ALCOHOL

This page reproduces the CosIng inventory entry for T-BUTYL ALCOHOL from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research T-BUTYL ALCOHOL and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

View sources View updates

Tools & next steps

Check your formula

Scan a full INCI list to detect T-BUTYL ALCOHOL and any linked EU annex restrictions or allergen flags.

INCI Checker

Search similar ingredients

Find other inventory ingredients and annex entries related to T-BUTYL ALCOHOL, its identifiers or nearby name variants.