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N-(2-Ethoxyphenyl)-N'-(2-ethylphenyl)oxamide

CAS 23949-66-8

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

Molecular structure of 23949-66-8
US productionZero
Import value, 2024$872M
Import volumeCBI
Top sourceSwitzerland 44%

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 292429 · basket

EPA reports by year
2023
US production Zero · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 292429, which covers 203 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CH 44%SwitzerlandCN 19%ChinaIN 12%IndiaJP 9%JapanIE 6%Ireland
Domestic parents -- activity not disclosed (2)
Amfine Chemical
Clariant
EPA-registered importers (4)
Basf Se · DE Germany
Songwon Industrial · KR South Korea
Basf
Songwon

Why It Matters

Sectors
Plastics & RubberPaints & Coatings
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 2 functional roles.

  • •Antioxidant in Plastics Material and Resin Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.26/gAaron Chemicals LLC
CountryHong Kong
Pack$131.00 / 500 g
Purity98%
Vendors7 available

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

6 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.28500 g98%
A2B Chem LLCUnited States$0.97100 g98%
AA BLOCKSUnited States$1.25100 g98%
AstaTech (2 weeks)United States$4.9625 g95%
Combi-Blocks, Inc.United States$6.0025 g98%
AngeneChina → Hong Kong$4266.6730 mg98%

Chemical Identity

CAS23949-66-8
PubChem CID90303
DTXSIDDTXSID1066944
FormulaC18H20N2O3
Mol. Weight312.4 g/mol
SMILESCCC1=CC=CC=C1NC(=O)C(=O)NC2=CC=CC=C2OCC

Data Sources

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Brief citations

N-(2-Ethoxyphenyl)-N'-(2-ethylphenyl)oxamide (CAS 23949-66-8) https://chemicalindependence.com/chemical/23949-66-8/ EPA CompTox (DSSTox): DTXSID1066944. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1066944 PubChem: 90303. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/90303 EPA Chemical Data Reporting: 23949-66-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 23949-66-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292429 for CAS 23949-66-8. Reporting year: 2024. https://usatrade.census.gov/