← All chemicals

CAS 55406-53-6

3-Iodo-2-propynyl butylcarbamate

3-Iodo-2-propynyl butylcarbamate (IPBC) is a preservative that prevents mold in paints, wood products, and some personal care items. It can cause skin allergies and eye irritation; high or repeated exposure has affected thyroid hormones in animal studies [1][2].

Where It Comes From

paints, stains, sealants, caulks, adhesives, treated wood, textiles, paper, and some cosmetics [1][3].

How You Are Exposed

skin contact with products or treated items; breathing mist or vapors during application; dust from sanding treated materials [1][2].

Why It Matters

allergic contact dermatitis, eye and respiratory irritation; thyroid effects seen in studies; very toxic to aquatic life [1][2][3].

Who Is at Risk

workers and DIY users, people with skin allergies, children, and those with thyroid disease or who are pregnant [1][2].

How to Lower Your Exposure

check labels for “iodopropynyl butylcarbamate” or “IPBC”; choose alternatives for leave-on products; use gloves, eye protection, and good ventilation; avoid sprays; let products dry fully; keep out of waterways [1][2][3].

References

  1. [1]US EPA. Reregistration Eligibility Decision (RED) for Iodopropynyl Butylcarbamate (IPBC). EPA 738-R-06-026, 2006.
  2. [2]US EPA. Registration Review: Proposed Interim Decision for Iodopropynyl Butylcarbamate (IPBC). EPA-HQ-OPP-2015-0681, 2020.
  3. [3]European Commission, Scientific Committee on Consumer Safety (SCCS). Opinion on Iodopropynyl butylcarbamate (IPBC) in cosmetic products, 2017 (updated 2022).

Track your exposure to 3-Iodo-2-propynyl butylcarbamate

Pollution Profile maps your lifetime exposure history to EPA-tracked chemicals.

Get early access

We use cookies and analytics to understand how people use Pollution Profile and improve the experience. We never sell your data. Learn more.