Benzyl 3-isobutyryloxy-1-isopropyl-2,2-dimethylpropyl phthalate

CAS 16883-83-3

U.S. production volumes are classified as confidential business information.

US productionCBI

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

Import value, 2024$28M

Top sourceIndia 39%

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. US production volume is confidential. 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 291734 · basket

EPA reports by year

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

These shares come from HS customs code 291734, which covers 34 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).

IN 39%IndiaCA 27%CanadaKR 8%South KoreaJP 6%JapanDE 6%Germany

Taiwan
Czech Republic
Turkey
United Kingdom

Domestic parents -- activity not disclosed (1)

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

Polymer Additives

Why It Matters

Sectors

Plastics & 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

•Plasticizer in Plastics Product ManufacturingProcessing—incorporation into article

Chemical Identity

CAS16883-83-3

PubChem CID28124

DTXSIDDTXSID4027785

FormulaC27H34O6

Mol. Weight454.6 g/mol

SMILESCC(C)C(C(C)(C)COC(=O)C(C)C)OC(=O)C1=CC=CC=C1C(=O)OCC2=CC=CC=C2

Data Sources

EPA CompTox (DSSTox) · DTXSID4027785Retrieved 2026-04-06
PubChem · compound 28124Retrieved 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

Benzyl 3-isobutyryloxy-1-isopropyl-2,2-dimethylpropyl phthalate (CAS 16883-83-3) https://chemicalindependence.com/chemical/16883-83-3/ EPA CompTox (DSSTox): DTXSID4027785. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4027785 PubChem: 28124. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/28124 EPA Chemical Data Reporting: 16883-83-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 16883-83-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291734 for CAS 16883-83-3. Reporting year: 2024. https://usatrade.census.gov/