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Octabenzone

CAS 1843-05-6

U.S. production volumes are classified as confidential business information.

Molecular structure of 1843-05-6
US productionCBI
Import value, 2024$85M
Top sourceChina 53%

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. 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 291450 · basket

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

These shares come from HS customs code 291450, which covers 68 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 53%ChinaIN 25%IndiaMX 9%MexicoDE 7%GermanyIT 4%Italy
Domestic parents -- activity not disclosed (2)
Chitec Technology
Si Group
EPA-registered importers (13)
Basf Se · DE Germany
Clariant International · CH Switzerland
Safic-Alcan · FR France
Songwon Industrial · KR South Korea
Syensqo Sa · BE Belgium
Show all 13
Basf
Chemspec
Clariant
Mayzo
S.C. Johnson & Son
Solvay
Songwon
Univar Solutions

Why It Matters

Sectors
ConstructionPlastics & RubberConsumer ProductsPaints & Coatings
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 6 sectors as 2 functional roles.

  • •UV stabilizer in Plastics Material and Resin ManufacturingProcessing—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 Product Manufacturing (100%)Processing—incorporation into article
  • •Antioxidant in Plastics Material and Resin Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
  • •Antioxidant in Synthetic Rubber Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Synthetic Rubber Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
  • •Antioxidant in Adhesive Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.05/gA2B Chem LLC
CountryUnited States
Pack$46.00 / 1 kg
Purity98%
Vendors21 available

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

20 more vendors
VendorCountry$/gPackPurity
Aaron Chemicals LLCHong Kong$0.05500 g99%
AA BLOCKSUnited States$0.061 kg98%
Angene ChemicalChina → Hong Kong$0.06500 g99%
ChemsceneUnited States$0.071 kg—
BLD Pharmatech Ltd.China$0.071 kg98%
BLD Pharmatech GmbHGermany$0.07500 g98%
Fluorochem EUGermany$0.16100 g95%
Combi-Blocks, Inc.United States$0.251 kg98%
AK Scientific SpecializedUnited States$0.28500 g97%
BLD Pharmatech Co., LimitedUnited States$0.32100 g98%
Ambeed, Inc.United States$0.32100 g98%
MedChemExpress MCESweden$0.35500 g99.91%
AK Scientific, Inc.United States$0.39500 g99%
Angene International LimitedUnited States$0.67500 g99%
Sigma-Aldrich (Rush Stock)Germany$1.09100 g98%
Sigma-AldrichGermany$1.09100 g98%
MedKoo Biosciences, IncUnited States$2.40100 g98%
AstaTech (2 weeks)United States$3.0825 g95%
AngeneChina → Hong Kong$4266.6730 mg99%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS1843-05-6
PubChem CID15797
DTXSIDDTXSID9027441
FormulaC21H26O3
Mol. Weight326.4 g/mol
SMILESCCCCCCCCOC1=CC(=C(C=C1)C(=O)C2=CC=CC=C2)O

Data Sources

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Brief citations

Octabenzone (CAS 1843-05-6) https://chemicalindependence.com/chemical/1843-05-6/ EPA CompTox (DSSTox): DTXSID9027441. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9027441 PubChem: 15797. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/15797 EPA Chemical Data Reporting: 1843-05-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1843-05-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291450 for CAS 1843-05-6. Reporting year: 2024. https://usatrade.census.gov/