High concernPlasticizer
Diisobutyl phthalate
PhthalateEndocrine disruptorReproductive toxicant
What it is
A branched short-chain phthalate ester often used as a lower-cost substitute for DBP.
What it does
Plasticizer in nitrocellulose, PVC, and adhesives. Found as a contaminant in personal care products.
Why it’s a concern
DiBP is classified in the EU as a reproductive toxicant. An older cohort associated prenatal DiBP biomarkers with lower child IQ, but this observational result is vulnerable to correlated exposures and residual confounding. EPA's TSCA finding applies to specific conditions of use.
Also known as
DiBP
CAS numbers
84-69-5
Commonly found in
adhesivesinksplastics
Safer alternatives
- DINCH
- citrate plasticizers
Related chemical families
Sources
- ECHA REACH SVHC