Isobutane

Synonyms: 2-Methylpropane

CAS Number: 75-28-5

SERIOUS
health hazard

MODERATE
health hazard

FEW OR NO
health hazards

0 79

80 89

90 100

Sources of exposure:

Personal care

Cleaning products and household care

Industrial uses

Arts & crafts, fuel

Description:

Isobutane is a volatile aliphatic hydrocarbon gas. It is used as a propellant in aerosol products, including personal care and cleaning products. It is also used as a refrigerant and fuel.

Health concerns:

Cancer

Known or suspected to increase cancer risk in humans.

Genotoxicity

May cause mutations or damage DNA in cells.

Banned/restricted lists:

European Commission Annex II prohibited substances. Government of Canada. List of Ingredients that are Restricted for Use in Cosmetic Products.

References

HOW MILLION MARKER SCORES CHEMICALS

Million Marker's Ingredient Hazard Scoring uses multiple chemical databases and a science-backed scoring system to compute hazard scores for thousands of chemicals found in consumer products and listed on ingredient labels.

We identified key chemicals based on a database compiling dozens of authoritative sources, screening tools, and QSAR models.

Hazard scores within 11 different health categories (carcinogens, endocrine disruptors, reproductive toxicants, developmental toxicants, genotoxicity, neurotoxicity, organ system toxicity, immunotoxicity, respiratory toxicity, skin/eye/respiratory irritants, and ecotoxicity).

They are weighted based on several factors, including strength of evidence for adverse impacts in humans, severity, and potential contamination.