Diisodecyl phthalate

CAS 26761-40-0

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$83M

Import volumeCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceGermany 68%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291733 · narrow

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 291733, which covers 5 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

DE 68%GermanyKR 13%South KoreaSE 8%SwedenTW 7%TaiwanCA 3%Canada

India
Netherlands
China
Belgium
Czech Republic
United Kingdom

Domestic parents -- activity not disclosed (4)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Akrochem

Chemspec

Icc Industries

Wego Chemical Group

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Lg Chem · KR South Korea

Lg Chem America

Why It Matters

Sectors

TransportationMetals & MiningPlastics & Rubber

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 3 sectors as 1 functional role.

•Plasticizer in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Plasticizer in Rubber Product Manufacturing (100%)Processing—incorporation into article
•Plasticizer in Transportation Equipment Manufacturing (100%)Processing—incorporation into article

Vendor Pricing

$0.05/gAaron Chemicals LLC

CountryHong Kong

Pack$26.00 / 500 g

Purity99%

Vendors6 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

5 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.05	500 g	99%
A2B Chem LLC (1 week)	United States	$0.66	250 g	—
AA BLOCKS (1 week)	United States	$0.68	250 g	—
Angene International Limited	United States	$2.41	100 g	—
MedChemExpress MCE	Sweden	$1113.20	100 mg	—

Chemical Identity

CAS26761-40-0

PubChem CID33599

DTXSIDDTXSID4025082

FormulaC28H46O4

Mol. Weight446.7 g/mol

SMILESCC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID4025082Retrieved 2026-04-06
PubChem · compound 33599Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Diisodecyl phthalate (CAS 26761-40-0) https://chemicalindependence.com/chemical/26761-40-0/ EPA CompTox (DSSTox): DTXSID4025082. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4025082 PubChem: 33599. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/33599 EPA Chemical Data Reporting: 26761-40-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 26761-40-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291733 for CAS 26761-40-0. Reporting year: 2024. https://usatrade.census.gov/