DIBP (Diisobutyl Phthalate)CAS 84-69-5
Branched-chain analog of DBP with the same anti-androgen reproductive toxicity profile.
Toxic Chemical Databases
Substance-specific listings — these flags are for DIBP alone, not for the broader family.
Chemical Type
Short-Chain Branched C4 Phthalate
Chemical Description
DIBP is the branched isomer of DBP — same molecular weight, same anti-androgen activity. EU REACH classifies it as a Category 1B reproductive toxicant and CPSC bans it from children's products. Used in adhesives, plastisol coatings, and nitrocellulose-based finishes.
Biological Activity
Severity scores specific to this substance, NOT the parent family average. Differences between siblings are real and meaningful.
Top Health Consequences
- REACH Category 1B reproductive toxicant
- Anti-androgen activity equivalent to DBP
- Banned from children's products under U.S. CPSC rules
Pathways of Exposure
- Ingestion of house dust
- Dermal absorption from adhesive-containing products
- Inhalation of off-gassed monomer
Building Materials with DIBP
Listed alphabetically — product categories where this specific substance appears.
Adhesives & Latex Sealants
Nitrocellulose Lacquer
Plastisol Coatings & Sealers
How We Keep DIBP Out of a House
Avoiding DIBP is only half of it. The replacement has to work in a mold free, airtight, PHPP-modeled assembly as well — and finding materials that do both is most of what we do.
If you want a house specified this way from the start, or an existing house assessed for what is already in it, that is the work we do. Earth Bound Homes builds in Los Gatos, San Jose, Santa Clara County and across the San Francisco Bay Area.