2H-Cyclododeca[b]pyran, 3,4,5,6,7,8,9,10,11,12,13,14-dodecahydro-
CAS 32539-83-6
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2019 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: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 293299 · basket
- 2019
- US production Confidential · Imports Confidential
These shares come from HS customs code 293299, which covers 229 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- United Kingdom
- Japan
- Germany
- Spain
- Israel
- Canada
- Brazil
- Vietnam
- Ukraine
- New Zealand
- Belgium
- Mexico
- Singapore
- Taiwan
- South Korea
- Sweden
- South Africa
- Egypt
- Indonesia
- Lithuania
- Finland
- Hungary
- Czech Republic
- Hong Kong
- Malaysia
- Slovakia
- Australia
- Russia
- Jordan
- Latvia
- Argentina
- Slovenia
- Malta
- Poland
- Denmark
- Austria
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID7074402Retrieved 2026-04-06
- PubChem · compound 99563Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
2H-Cyclododeca[b]pyran, 3,4,5,6,7,8,9,10,11,12,13,14-dodecahydro- (CAS 32539-83-6) https://chemicalindependence.com/chemical/32539-83-6/ EPA CompTox (DSSTox): DTXSID7074402. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7074402 PubChem: 99563. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/99563 EPA Chemical Data Reporting: 32539-83-6. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293299 for CAS 32539-83-6. Reporting year: 2024. https://usatrade.census.gov/