DIBP (Diisobutyl Phthalate)CAS 84-69-5
Branched-chain analog of DBP with the same anti-androgen reproductive toxicity profile.
Other Orthophthalates substances:DEHPDBPBBPDCHPDIDPDi-(C10-rich, branched C9-C11 alkyl) PhthalateDIHPDi-(C9-rich branched C8-C10-alkyl) PhthalateDINP-2DnOPDnPP
DIBP belongs to the Orthophthalates family — products shown above commonly contain one or more substances from this family
Toxic Chemical Databases
Substance-specific listings — these flags are for DIBP alone, not for the broader family.
LBC Red List
Listed
Prop 65
Not Listed
IARC
Not Listed
NTP RoC
Not Listed
GSPI
Listed
REACH SVHC
Listed
TSCA
Listed
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.
Endocrine
9/10
Reproductive
9/10
Developmental
9/10
Liver/Kidney
7/10
Cancer
5/10
Neurological
4/10
Cardiovascular
5/10
Immune
4/10
Respiratory
3/10
Skin
3/10
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
Want to screen a specific product? Drop the manufacturer's SDS into our SDS Toxic Chemical Screener — it screens this substance (CAS 84-69-5) against all seven databases shown above.