Flag of the United StatesAmerican Chemical Independence

C.I. Pigment Red 179

CAS 5521-31-3

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

Molecular structure of 5521-31-3
US productionCBI
Import value, 2024$43M
Top sourceJapan 25%

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 292519 · basket

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

These shares come from HS customs code 292519, which covers 43 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 25%JapanCN 21%ChinaGB 21%United KingdomAT 14%AustriaDE 7%Germany
EPA-registered importers (2)
Basf Se · DE Germany
Basf

Why It Matters

Sectors
TransportationPlastics & RubberPaints & CoatingsPaper & Printing
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 5 sectors as 1 functional role.

  • •Pigment in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Transportation Equipment ManufacturingProcessing—incorporation into article
  • •Pigment in Plastics Material and Resin Manufacturing (40%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Printing Ink Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.71/gAaron Chemicals LLC
CountryHong Kong
Pack$353.00 / 500 g
Purity92%
Vendors17 available

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

16 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.81500 g92%
AK Scientific SpecializedUnited States$0.82250 g—
A2B Chem LLCUnited States$0.88250 g92%
AA BLOCKSUnited States$0.91250 g92%
Angene International LimitedUnited States$1.40250 g—
BLD Pharmatech Ltd.China$1.75500 g92%
ChemsceneUnited States$1.85500 g—
BLD Pharmatech Co., LimitedUnited States$2.50100 g92%
BLD Pharmatech GmbHGermany$2.50100 g92%
Ambeed, Inc.United States$2.50100 g92%
AstaTech, IncUnited States$5.7010 g95%
Fluorochem EUGermany$15.731 g95%
Biopharma PEG Scientific Inc.United States$25.7625 g90%
AK Scientific, Inc.United States$28.005 g—
AngeneChina → Hong Kong$4266.6730 mg92%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS5521-31-3
PubChem CID79657
DTXSIDDTXSID9029273
FormulaC26H14N2O4
Mol. Weight418.4 g/mol
SMILESCN1C(=O)C2=C3C(=CC=C4C3=C(C=C2)C5=C6C4=CC=C7C6=C(C=C5)C(=O)N(C7=O)C)C1=O

Data Sources

← Back to Dashboard← Back to Transportation

Brief citations

C.I. Pigment Red 179 (CAS 5521-31-3) https://chemicalindependence.com/chemical/5521-31-3/ EPA CompTox (DSSTox): DTXSID9029273. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9029273 PubChem: 79657. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/79657 EPA Chemical Data Reporting: 5521-31-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5521-31-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292519 for CAS 5521-31-3. Reporting year: 2024. https://usatrade.census.gov/