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4-Methylbenzophenone

CAS 134-84-9

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

Molecular structure of 134-84-9
US productionCBI
Import value, 2024$16M
Top sourceChina 55%

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 291439 · basket

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

These shares come from HS customs code 291439, which covers 86 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 55%ChinaIN 26%IndiaIT 7%ItalyDE 5%GermanyGB 2%United Kingdom
EPA-registered importers (2)
Aalborz Chemical
Igm Resins Charlotte

Why It Matters

Sectors
Plastics & RubberPaper & Printing
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • •Photosensitive agent in Printing and Related Support ActivitiesProcessing—incorporation into formulation, mixture, or reaction product
  • •Filler in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$12.00 / 500 g
Purity95%
Vendors23 available

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

22 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.03500 g98%
BLD Pharmatech GmbHGermany$0.061 kg95%
BLD Pharmatech Ltd.China$0.061 kg95%
Apollo Scientific USUnited Kingdom$0.071 kg99%
AK Scientific SpecializedUnited States$0.081 kg97%
A2B Chem LLCUnited States$0.081 kg98%
AA BLOCKSUnited States$0.091 kg98%
AK Scientific, Inc.United States$0.101 kg99%
BLD Pharmatech Co., LimitedUnited States$0.111 kg95%
Ambeed, Inc.United States$0.111 kg95%
Fluorochem UKUnited Kingdom$0.13100 g95%
Angene International LimitedUnited States$0.24500 g98%
Combi-Blocks, Inc.United States$0.251 kg98%
ALFA AESARGermany$0.76500 g98%
AstaTech (2 weeks)United States$0.99100 g95%
Sigma-Aldrich (Rush Stock)Germany$2.4750 g99%
Sigma-AldrichGermany$2.4750 g99%
TargetMol ChemicalsChina → United States$35.001 g98%
SpecsNetherlands$132.1310 g90%
Labotest KGGermany$453.001000 mg90%
Key Organics Ltd.United Kingdom$2740.0050 mg97%
AngeneChina → Hong Kong$4266.6730 mg98%

Chemical Identity

CAS134-84-9
PubChem CID8652
DTXSIDDTXSID9037741
FormulaC14H12O
Mol. Weight196.24 g/mol
SMILESCC1=CC=C(C=C1)C(=O)C2=CC=CC=C2

Data Sources

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Brief citations

4-Methylbenzophenone (CAS 134-84-9) https://chemicalindependence.com/chemical/134-84-9/ EPA CompTox (DSSTox): DTXSID9037741. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9037741 PubChem: 8652. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8652 EPA Chemical Data Reporting: 134-84-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 134-84-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291439 for CAS 134-84-9. Reporting year: 2024. https://usatrade.census.gov/