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Phosphoric acid, dibutyl ester

CAS 107-66-4

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

Molecular structure of 107-66-4
US productionCBI
Import value, 2024$123M
Top sourceChina 66%

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 291990 · basket

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

These shares come from HS customs code 291990, which covers 77 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 66%ChinaDE 18%GermanyJP 5%JapanIN 3%IndiaCH 3%Switzerland
EPA-registered manufacturers (2)
Aceto Us
Innovative Chemical Technologies
Domestic parents -- activity not disclosed (1)
Lanxess
EPA-registered importers (2)
Lanxess · DE Germany
The Sherwin Williams

Why It Matters

Sectors
ConstructionTextilesConsumer ProductsPaints & CoatingsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 6 sectors as 4 functional roles.

  • •Surfactant (surface active agent) in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Surface modifier in All Other Chemical Product and Preparation Manufacturing (100%)Processing as a reactant
  • •Plasticizer in Furniture and Related Product ManufacturingProcessing—incorporation into article
  • •Plasticizer in Wood Product ManufacturingProcessing—incorporation into article
  • •Wrinkle resisting agent in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Wrinkle resisting agent in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into article

Vendor Pricing

$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$117.00 / 5 kg
Purity97%
Vendors13 available

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

12 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.03500 g97%
AA BLOCKSUnited States$0.05500 g96%
A2B Chem LLCUnited States$0.05500 g95%
Angene International LimitedUnited States$0.09500 g98%
MedChemExpress MCESweden$0.131 kg97%
Combi-Blocks, Inc.United States$0.251 kg97%
AK Scientific SpecializedUnited States$0.31100 g95%
Fluorochem EUGermany$0.3925 g97%
AK Scientific, Inc.United States$0.40100 g97%
Ambeed, Inc.United States$0.45100 g97%
AstaTech (2 weeks)United States$1.4825 g95%
AngeneChina → Hong Kong$4266.6730 mg97%

Chemical Identity

CAS107-66-4
PubChem CID7881
DTXSIDDTXSID3040728
FormulaC8H19O4P
Mol. Weight210.21 g/mol
SMILESCCCCOP(=O)(O)OCCCC

Data Sources

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Brief citations

Phosphoric acid, dibutyl ester (CAS 107-66-4) https://chemicalindependence.com/chemical/107-66-4/ EPA CompTox (DSSTox): DTXSID3040728. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3040728 PubChem: 7881. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7881 EPA Chemical Data Reporting: 107-66-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 107-66-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291990 for CAS 107-66-4. Reporting year: 2024. https://usatrade.census.gov/