Diphenyl isophthalate
CAS 744-45-6
Companies reported imports and no US production of this chemical to EPA for 2023.
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.
2013: $142M · Peak 2022: $363M · 2024: $316M · 2025: $288M
Where It Comes From
Customs basis: HS 291739 · basket
- 2023
- US production Zero · Imports 231.6K lb
- 2019
- US production 262.5K lb · Imports Zero
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
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
13 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 |
|---|---|---|---|---|
| A2B Chem LLC | United States | $0.66 | 500 g | 97% |
| BLD Pharmatech Ltd. | China | $0.67 | 500 g | 97% |
| AA BLOCKS | United States | $0.69 | 500 g | 97% |
| Aaron Chemicals LLC | Hong Kong | $0.92 | 100 g | 97% |
| Angene Chemical | China → Hong Kong | $0.94 | 100 g | 97% |
| AstaTech, Inc | United States | $0.96 | 100 g | 95% |
| Ambeed, Inc. | United States | $1.44 | 25 g | 97% |
| Sigma-Aldrich (Rush Stock) | Germany | $2.79 | 25 g | 99% |
| Sigma-Aldrich | Germany | $2.79 | 25 g | 99% |
| AK Scientific, Inc. | United States | $4.92 | 25 g | 98% |
| Angene International Limited | United States | $4.92 | 25 g | 98% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 97% |
| TimTec, LLC | United States | $9333.33 | 30 mg | 90% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID8037752Retrieved 2026-04-06
- PubChem · compound 69779Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Diphenyl isophthalate (CAS 744-45-6) https://chemicalindependence.com/chemical/744-45-6/ EPA CompTox (DSSTox): DTXSID8037752. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8037752 PubChem: 69779. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/69779 EPA Chemical Data Reporting: 744-45-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291739 for CAS 744-45-6. Reporting year: 2024. https://usatrade.census.gov/