3-Dodecyl-1-(2,2,6,6-tetramethyl-4-piperidinyl)-2,5-pyrrolidinedione

CAS 79720-19-7

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import value, 2024$1.3B

Import volume30.6K lb

Import dependency100%

Top sourceChina 32%

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.

3-Dodecyl-1-(2,2,6,6-tetramethyl-4-piperidinyl)-2,5-pyrrolidinedione · US import value by year

Peak 2013: $2.2B · 2024: $1.3B · 2025: $1.3B

Where It Comes From

Customs basis: HS 293339 · basket

EPA reports by year

2023: US production Zero · Imports 30.6K lb
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 293339, which covers 397 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).

CN 32%ChinaIN 15%IndiaDE 10%GermanyBE 9%BelgiumCH 8%Switzerland

Taiwan
Ukraine
Sweden
Argentina
Canada
Finland
Malta
Israel
Netherlands
Denmark
United Arab Emirates
Mexico
Brunei
Slovakia
Australia
South Africa
Poland
Latvia
Lithuania
Estonia
Slovenia
Czech Republic
Croatia
Hong Kong

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.

Clariant International · CH Switzerland

Clariant

Why It Matters

Sectors

ConstructionPlastics & RubberPaints & Coatings

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 4 sectors as 2 functional roles.

•Lubricating agent in Construction (50%)Processing—incorporation into article
•UV stabilizer in Paint and Coating Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
•UV stabilizer in Plastics Material and Resin Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
•Lubricating agent in Plastics Product Manufacturing (1%)Processing—incorporation into article

Chemical Identity

CAS79720-19-7

PubChem CID174179

DTXSIDDTXSID201338957

FormulaC25H46N2O2

Mol. Weight406.6 g/mol

SMILESCCCCCCCCCCCCC1CC(=O)N(C1=O)C2CC(NC(C2)(C)C)(C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID201338957Retrieved 2026-04-06
PubChem · compound 174179Retrieved 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

3-Dodecyl-1-(2,2,6,6-tetramethyl-4-piperidinyl)-2,5-pyrrolidinedione (CAS 79720-19-7) https://chemicalindependence.com/chemical/79720-19-7/ EPA CompTox (DSSTox): DTXSID201338957. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID201338957 PubChem: 174179. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/174179 EPA Chemical Data Reporting: 79720-19-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 79720-19-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293339 for CAS 79720-19-7. Reporting year: 2024. https://usatrade.census.gov/