Dimethyl 2,6-naphthalenedicarboxylate
CAS 840-65-3
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction 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 291739 · basket
- 2023
- US production Confidential · Imports Zero
- 2019
- US production Confidential · Imports Confidential
These shares come from HS customs code 291739, which covers 103 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Netherlands
- Malaysia
- Colombia
- Switzerland
- Turkey
- Germany
- Peru
- Brazil
- Sweden
- Belgium
- Denmark
- Czech Republic
- Ukraine
- Hong Kong
Why It Matters
Industrial Uses
- •Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
23 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Combi-Blocks, Inc. | United States | $0.55 | 500 g | 98% |
| AA BLOCKS | United States | $0.56 | 25 g | 99% |
| Aaron Chemicals LLC | Hong Kong | $0.59 | 500 g | 99% |
| Angene Chemical | China → Hong Kong | $0.60 | 500 g | 98% |
| Chemscene | United States | $0.64 | 500 g | — |
| BLD Pharmatech Co., Limited | United States | $0.64 | 500 g | 99% |
| BLD Pharmatech Ltd. | China | $0.64 | 500 g | 99% |
| Ambeed, Inc. | United States | $0.64 | 500 g | 99% |
| BLD Pharmatech GmbH | Germany | $0.84 | 25 g | 99% |
| Fluorochem EU | Germany | $0.93 | 100 g | 98% |
| Angene International Limited | United States | $1.32 | 25 g | 99% |
| AK Scientific Specialized | United States | $1.35 | 100 g | 95% |
| AK Scientific, Inc. | United States | $1.80 | 100 g | 99% |
| Fluorochem UK | United Kingdom | $2.57 | 5 g | 98% |
| Synthonix | United States | $3.00 | 10 g | 99% |
| Sigma-Aldrich (Rush Stock) | Germany | $6.36 | 25 g | 98% |
| Sigma-Aldrich | Germany | $6.36 | 25 g | 98% |
| Manchester Organics | United Kingdom | $6.98 | 100 g | 99% |
| ALFA AESAR | Germany | $13.38 | 100 g | 99% |
| AstaTech (2 weeks) | United States | $30.00 | 1 g | 95% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID6029202Retrieved 2026-04-06
- PubChem · compound 61225Retrieved 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
Brief citations
Dimethyl 2,6-naphthalenedicarboxylate (CAS 840-65-3) https://chemicalindependence.com/chemical/840-65-3/ EPA CompTox (DSSTox): DTXSID6029202. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6029202 PubChem: 61225. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61225 EPA Chemical Data Reporting: 840-65-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 840-65-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291739 for CAS 840-65-3. Reporting year: 2024. https://usatrade.census.gov/