2,4-Dinonylphenol

CAS 137-99-5

Companies reported imports and no US production of this chemical to EPA for 2019.

US productionZero

Import value, 2024$33M

Import volume23.8K lb

Import dependency100%

Top sourceGermany 29%

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

2,4-Dinonylphenol · US import value by year

2013: $35M · Peak 2022: $49M · 2024: $33M · 2025: $36M

Where It Comes From

Customs basis: HS 290719 · basket

EPA reports by year

2019: US production Zero · Imports 23.8K lb

These shares come from HS customs code 290719, which covers 116 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 29%GermanyIN 26%IndiaCN 19%ChinaIT 9%ItalyCH 5%Switzerland

Mexico
Poland
South Korea
Canada
Russia
Ukraine
Hong Kong
Malaysia
United Kingdom

EPA-registered importers (1)

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

Aalborz Chemical

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$77.60/gA2B Chem LLC (1 week)

CountryUnited States

Pack$388.00 / 5 g

PurityNot recorded

Vendors2 available

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

1 more vendor

Vendor	Country	$/g	Pack	Purity
Angene International Limited	United States	$101.80	5 g	—

Chemical Identity

CAS137-99-5

PubChem CID8735

DTXSIDDTXSID1051698

FormulaC24H42O

Mol. Weight346.6 g/mol

SMILESCCCCCCCCCC1=CC(=C(C=C1)O)CCCCCCCCC

Data Sources

EPA CompTox (DSSTox) · DTXSID1051698Retrieved 2026-04-06
PubChem · compound 8735Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

2,4-Dinonylphenol (CAS 137-99-5) https://chemicalindependence.com/chemical/137-99-5/ EPA CompTox (DSSTox): DTXSID1051698. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1051698 PubChem: 8735. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8735 EPA Chemical Data Reporting: 137-99-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290719 for CAS 137-99-5. Reporting year: 2024. https://usatrade.census.gov/