What Is 2-Butoxyethanol?
In plain English: 2-Butoxyethanol is a glycol-ether solvent used in many glass, all-purpose, and heavy-duty cleaners because it cuts grease well. It's a clear liquid with a faint ether-like smell.
Also listed as: butoxyethanol, ethylene glycol monobutyl ether, ethylene glycol butyl ether, butyl cellosolve, EGBE
The honest science
In short: 2-butoxyethanol is a widely used glycol-ether solvent that's a documented skin, eye and airway irritant at higher exposures, and it can be absorbed through skin as well as inhaled — but ATSDR notes there are no human data proving it causes cancer, birth defects or reproductive harm. 12 Our full guide below covers how to spot it under its many aliases, where it hides in glass and all-purpose cleaners, and how to avoid it in plain-English detail.
Where you'll find it
- glass and window cleaners
- all-purpose sprays
- heavy-duty degreasers
- bathroom cleaners
The safer-swap angle: It isn't a proven poison at typical use, but if you're sensitive to fumes or cleaning a small unventilated room, a solvent-free plant-based cleaner is a gentle swap.
→ Read the full deep-dive guide on 2-Butoxyethanol
Frequently asked questions
Is 2-butoxyethanol banned?
No. It's still widely used in household and industrial cleaners. It's listed within EPA's glycol-ether hazardous-air-pollutant class, but that's a regulatory grouping, not a consumer ban.
Does it cause cancer?
According to ATSDR, there are no human data showing it causes cancer, birth defects, or reproductive effects. That's genuine uncertainty, not a clean bill of health, so reasonable caution makes sense.
How would I be exposed?
Mainly by breathing fumes during use in a poorly ventilated space, or by skin contact. The serious cases in the literature involve swallowing large amounts of concentrated cleaner.
Sources
- 2-Butoxyethanol and 2-Butoxyethanol Acetate | ToxFAQs — ATSDR / CDC
- Glycol Ethers (fact sheet) — US EPA
Ingredient safety data changes as new research is published, and product formulas change over time. Always read the current label and check primary sources.
Related terms
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