Used in cosmetics as a propellant. Butane, less than 0.1% w/w butadiene.

Critical concern: classified for carcinogenic, mutagenic or reproductive toxicity (CMR). It is banned in EU cosmetics.

beauty
cleaning
food
industrial

Butane

CAS 106-97-8 · 100/100 · High conf.

Concern score

100/100Critical concern driven by cmr.

High confidence

Butane in plain language

What it is: Also known as Butane, if it contains = >0,1 % w/w Butadiene · Hc 600 (hydrocarbon) · N-butane · R 600 (alkane) · A 21 (lowing agent) · Butanen
Show all 26 names
Butani · Butyl hydride · Diethyl · E 943a · E-943 · E943a · Hc 600 · Ins NO.943 · INS-943 · Methylethylmethane · Normal butane · R 600 · Un 1011 · butane. vp: 1640 @ 68f. · butane. vp:760. · puro butano · n-Butan · n-C4H10 · n-butane. vp: 879.1 mmhg @ 68f. lel: 1.8%. · n-butane. vp: 879.100 mmhg @ 68f. lel: 1.80%.
What it does: Used in cosmetics as a propellant. Butane, less than 0.1% w/w butadiene.
Propellant
Is it a concern?: Critical concern: classified for carcinogenic, mutagenic or reproductive toxicity (CMR). It is banned in EU cosmetics.

Why it's flagged

Butane, if it contains = >0,1 % w/w Butadiene 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
Inactive ingredient in US drugs

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. CMR: Carcinogenic Cat. 1A(),Mutagenic Cat. 1B()
banned
View source →

USFDAinactive ingredient database3 entries — 2 administration routes
- Route: RECTAL; Dosage form: AEROSOL, FOAM; Maximum daily exposure: 12 mgSource →
- Route: TOPICAL; Dosage form: AEROSOL; Potency: NASource →
- Route: TOPICAL; Dosage form: AEROSOL, FOAM; Potency: 27 %w/wSource →
EUCosIngActive2 entries
- Butane, less than 0.1% w/w butadieneSource →
- Cosmetics Regulation annex II / ref 465.Source →
GLOBALJECFANO ADI ALLOCATEDJECFA evaluation lists ADI NO ADI ALLOCATED. Functional class: propellant.
- JECFA evaluation lists ADI NO ADI ALLOCATED. Functional class: propellant.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 4937 composition records across product categories including Home maintenance, Vehicle, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Propellants, non-motive (blowing agents), No specific technical function.
- EPA CPDat observed this chemical in 4937 composition records across product categories including Home maintenance, Vehicle, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Propellants, non-motive (blowing agents), No specific technical function.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

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.
JECFA
Joint FAO/WHO Expert Committee on Food Additives
- JECFA evaluation lists ADI NO ADI ALLOCATED. Functional class: propellant.
  Year not recorded · GLOBAL JECFA listing · Read the source →

Evidence & sources

No graded research studies for Butane yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

9 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EU CosIng Cosmetics Regulation Annexes
regulatory · updated 2010-10-15
Open →
EPA Chemical and Products Database
exposure · updated september 29, 2021
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA Inactive Ingredient Database
regulatory · updated 2026-01-09
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
WHO JECFA Database
regulatory · updated 2026-10-04
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Reference links (1)

Openfda substance

apps.who.int

Read →

Suitability

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

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed Butane in a product composition. These are source records, not Greenveil catalog products.

Source records

4,937

Named organisations

Home maintenanceVehicleCleaning products and household careConstructionRaw materialsArts and crafts/office supplies

Typical roles

Propellant

See products using Butane →

Catalog

Found in these products

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

See all 790 →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Butane in the catalog.