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CarCareTruthProducts · Ranked

n-Butane

  • Aliphatic solvents
  • CAS 106-97-8
  • IUPAC: Butane

n-Butane (CAS 106-97-8) appears in 2 of the 1,812 car-care products CarCareTruth tracks (as of June 2026). It is readily biodegradable.

Extremely flammable gas (H220) and simple asphyxiant. No specific organ toxicity at consumer-use concentrations. Primary hazard is fire and explosion from the pressurized aerosol can.

n-Butane (CAS 106-97-8) is a liquefied petroleum gas used as an aerosol propellant, often alongside propane. It liquefies under the pressure inside the can and vaporizes as the valve opens, driving the product contents out as a fine spray. The H220 (extremely flammable gas) and H280 (pressurized container) classifications apply to the propellant fraction.

No inhalation toxicity concerns at normal consumer-use levels. Not an asthmagen, sensitizer, or carcinogen. Not listed under California Prop 65. Negligible environmental persistence — disperses into the atmosphere after use.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
yes
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
4/5
Purpose: Aerosol propellant — pressurizes the can and helps atomize liquid contents into fine mist

Common questions about n-Butane

What is n-Butane used for in car care?
Aerosol propellant — pressurizes the can and helps atomize liquid contents into fine mist
Is n-Butane a VOC?
No. n-Butane is not classified as a volatile organic compound (VOC).
Is n-Butane on California's Proposition 65 list?
No. n-Butane is not on California's Proposition 65 list.
Is n-Butane biodegradable?
Yes. n-Butane has a confirmed biodegradable profile.

2 products contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.