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C.I. Pigment Orange 16

CAS 6505-28-8

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

Molecular structure of 6505-28-8
US productionCBI
Import value, 2024$419M
Top sourceIndia 31%

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 320417 · basket

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

These shares come from HS customs code 320417, which covers 80 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 31%IndiaCN 21%ChinaDE 17%GermanyKR 6%South KoreaCA 5%Canada
Domestic parents -- activity not disclosed (1)
Basf
EPA-registered importers (2)
Pigments Services
Trust Chem Usa Llc.

Why It Matters

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

Industrial Uses

Used in 4 sectors as 1 functional role.

  • •Pigment in Plastics Material and Resin Manufacturing (35%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Printing Ink Manufacturing (62%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Paint and Coating Manufacturing (3%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Synthetic Dye and Pigment Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$153.00/gAK Scientific, Inc.
CountryUnited States
Pack$153.00 / 1 g
PurityNot recorded
Vendors3 available

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

2 more vendors
VendorCountry$/gPackPurity
A2B Chem LLC (1 week)United States$1215.001 g95%
AA BLOCKS (1 week)United States$1288.001 g95%

Chemical Identity

CAS6505-28-8
PubChem CID110869
DTXSIDDTXSID60863890
FormulaC34H32N6O6
Mol. Weight620.7 g/mol
SMILESCC(=O)C(C(=O)NC1=CC=CC=C1)N=NC2=C(C=C(C=C2)C3=CC(=C(C=C3)N=NC(C(=O)C)C(=O)NC4=CC=CC=C4)OC)OC

Data Sources

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Brief citations

C.I. Pigment Orange 16 (CAS 6505-28-8) https://chemicalindependence.com/chemical/6505-28-8/ EPA CompTox (DSSTox): DTXSID60863890. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID60863890 PubChem: 110869. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/110869 EPA Chemical Data Reporting: 6505-28-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 6505-28-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 320417 for CAS 6505-28-8. Reporting year: 2024. https://usatrade.census.gov/