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C.I. Pigment Orange 13

CAS 3520-72-7

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

Molecular structure of 3520-72-7
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)
Flint Group Packaging Inks North America Holdings
EPA-registered importers (4)
Hallmark Cards
Pigments Services
Target
Trust Chem Usa Llc.

Why It Matters

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

Industrial Uses

Used in 7 sectors as 1 functional role.

  • •Pigment in Paint and Coating Manufacturing (54%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Plastics Material and Resin Manufacturing (43%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Printing Ink Manufacturing (3%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in All Other Chemical Product and Preparation Manufacturing (60%)Processing—repackaging
  • •Pigment in Printing and Related Support ActivitiesProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Custom Compounding of Purchased Resins (50%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Synthetic Dye and Pigment Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$23.98/gMedChemExpress MCE
CountrySweden
Pack$1199.11 / 50 g
PurityNot recorded
Vendors1 available

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

Chemical Identity

CAS3520-72-7
PubChem CID20843803
DTXSIDDTXSID6052031
FormulaC32H24Cl2N8O2
Mol. Weight623.5 g/mol
SMILESCC1=NN(C(=O)C1N=NC2=C(C=C(C=C2)C3=CC(=C(C=C3)N=NC4C(=NN(C4=O)C5=CC=CC=C5)C)Cl)Cl)C6=CC=CC=C6

Data Sources

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Brief citations

C.I. Pigment Orange 13 (CAS 3520-72-7) https://chemicalindependence.com/chemical/3520-72-7/ EPA CompTox (DSSTox): DTXSID6052031. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6052031 PubChem: 20843803. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/20843803 EPA Chemical Data Reporting: 3520-72-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 3520-72-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 320417 for CAS 3520-72-7. Reporting year: 2024. https://usatrade.census.gov/