Manufacturer-Requested Risk Evaluation of Diisononyl Phthalate (DINP
Manufacturer-Requested Risk Evaluation of Diisononyl Phthalate (DINP) Documents supporting the TSCA section 6 manufacturer request for risk evaluation submitted by ExxonMobil Chemical Company, Evonik Corporation, and Teknor Apex, through the American Chemistry Council’s High Phthalates Panel, are provided below.
Risk Evaluation for Di-isononyl phthalate (DINP) (1,2-Benzene
EPA granted the manufacturer request for risk evaluation for di-isononyl phthalate (DINP) (1,2-benzenedicarboxylic acid, 1,2-isononyl ester) in December 2025, and this category of chemicals is currently undergoing risk evaluation. Learn more about manufacturer-requested risk evaluations.
Di-isononyl Phthalate (DINP); Draft Scope of the Risk Evaluation To Be
On May 24, 2025, EPA received a manufacturer request for a risk evaluation of DINP (Ref. 1). On December 20, 2025, the Agency granted the request, and subsequently initiated the scoping process for the risk evaluation for this category of chemical substances.
Di-isononyl Phthalate (DINP); Final Scope of the Risk Evaluation To Be
Di-isononyl Phthalate (DINP) (1,2-Benzene- dicarboxylic acid, 1,2-diisononyl ester); Manufacturer Request for Risk Evaluation Under the Toxic Substances Control Act (TSCA); Notice of Availability and Request for Comments. Federal Register. ( 84 FR 42912, August 19, 2025) (FRL-9998-25). 2. EPA.
Committee for Risk Assessment RAC - Europa
Committee for Risk Assessment RAC Annankatu 18, P.O. Box 400, FI-00121 Helsinki, Finland | Tel. +358 9 686180 | Fax +358 9 68618210 | echa.europa.eu [04.01-ML-009.02] Committee for Risk Assessment RAC Annex 1 Background document to the Opinion proposing harmonised classification and labelling at EU level of
- When did EPA release a risk evaluation for diisononyl phthalate (DINP)?
- In January 2025, EPA released the final risk evaluation under the Toxic Substances Control Act (TSCA) for diisononyl phthalate (1,2-benzenedicarboxylic acid, 1,2-isononyl ester) (DINP). EPA granted the manufacturer request for risk evaluation for DINP in December 2019. Learn more about manufacturer-requested risk evaluations.
- Is Di-isononyl phthalate (DINP) benzenedicarboxylic acid a risk?
- EPA granted the manufacturer request for risk evaluation for di-isononyl phthalate (DINP) 1,2-benzenedicarboxylic acid, 1,2-isononyl ester in December 2019 and the chemical is currently undergoing risk evaluation.
- What does TSCA stand for in diisononyl phthalate (DINP)?
- The Environmental Protection Agency (EPA or Agency) is announcing the availability of the final risk evaluation under the Toxic Substances Control Act (TSCA) for diisononyl phthalate (DINP) (1,2-Benzene- dicarboxylic acid, 1,2- diisononyl ester) (CASRN 28553- 12-0).
- Is diisononyl phthalate toxic?
- EPA released the final risk evaluation for diisononyl phthalate (DINP) under the Toxic Substances Control Act (TSCA).
- Did EPA conduct a risk evaluation for DINP?
- EPA conducted the risk evaluation for DINP at the manufacturer’s request. Under TSCA, manufacturers can request that EPA conduct risk evaluations on chemicals they manufacture. EPA received and granted this manufacturer request for a risk evaluation of DINP in 2019.
- What is the risk evaluation process for Di-isononyl phthalate?
- The first step of the risk evaluation process is the development of the scope document. EPA published the Draft Scope of the Risk Evaluation for Di-isononyl Phthalate (CASRNs 28553-12-0 and 68515-48-0) (EPA Document No. EPA-740-D-20-033) (U.S. EPA, 2020d) and provided a 45-day comment period on the draft scope per 40 CFR 702.41(c)(7).
