Final Scope of the Risk Evaluation for Dibutyl Phthalate (1,2
In December 2025, EPA designated dibutyl phthalate (CASRN 84-74-2) as a high-priority substance for risk evaluation following the prioritization process as required by Section 6(b) of the Toxic Substances Control Act (TSCA) and implementing regulations (40 CFR Part 702) (Docket ID: EPA-HQ-OPPT- 2025-0131).
Draft Scope of the Risk Evaluation for Dibutyl Phthalate (1,2
In December 2025, EPA designated dibutyl phthalate (CASRN 84-74-2) as a high-priority substance for risk evaluation following the prioritization process required by Section 6(b) of the Toxic Substances
Dibutyl phthalate 99 84-74-2 - Sigma-Aldrich
CAS Number: 84-74-2 Molecular Weight: 278.34 Beilstein: 1914064 EC Number: 201-557-4 MDL number: MFCD00009441 PubChem Substance ID: 24874456 NACRES: NA.22 Pricing and availability is not currently available. Properties vapor density 9.6 (vs air) Quality Level 200 vapor pressure 1 mmHg ( 147 °C) assay 99% form liquid autoignition temp. 756 °F
Proposed Designation of Dibutyl Phthalate as a High-Priority Substance
Dibutyl Phthalate (CASRN 84-74-2) as High-Priority Substance for Risk Evaluation August 22, 2025. ii Table of Contents List of Tables
Dibutyl phthalate certified reference material, TraceCERT 84-74-2
Dibutyl phthalate certified reference material, TraceCERT; CAS Number: 84-74-2; EC Number: 201-557-4; Synonyms: n-Butyl phthalate,DBP,Phthalic acid dibutyl ester; Linear Formula: C6H4-1,2-[CO2(CH2)3CH3]2; find Supelco-18281 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich
- Is dibutyl phthalate a high-priority substance?
- According to the Proposed Designation of Dibutyl Phthalate (CASRN 84-74-2) as a High-Priority Substance for Risk Evaluation(U.S. EPA, 2019a), dibutyl phthalate is considered a high-priority substance. EPA identified potential human health hazards for dibutyl phthalate based on reasonably available information from peer-reviewed assessments and databases.
- What is the CAS number for dibutyl phthalate?
- The CAS Registry Number for dibutyl phthalate is 84-74-2.
- Is dibutyl phthalate a high priority substance under TSCA?
- Dibutyl phthalate is a High-Priority Substance under TSCA (84 FR 71924, December 30, 2019). Its designation as a high-priority substance initiates the risk evaluation on the chemical.
- Does dibutyl phthalate have health effects?
- The health effects data for dibutyl phthalate were reviewed by the U.S. EPA RfD/RfC Work Group and determined to be inadequate for derivation of an inhalation RfC. For additional information on health effects of this chemical interested parties are referred to the EPA documentation listed below. U.S. EPA. 1987.
- When is dibutyl phthalate included in the iris database?
- Dibutyl phthalate; CASRN 84-74-2 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data, as outlined in the IRIS assessment development process.
- Is dibutyl phthalate a hazardous substance?
- According to the Restriction of Hazardous Substances Directive (RoHS), EU/2015/863, dibutyl phthalate is a substance that is restricted at more than 0.1% by weight at the 'homogeneous material' level in electrical and electronic equipment.
