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C.I. Pigment Red 57, calcium salt (1:1)

CAS 5281-04-9

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

Molecular structure of 5281-04-9
1 Ca²⁺
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 (3)
Basf
Flint Cps Inks North America
Flint Group Packaging Inks North America Holdings
EPA-registered importers (9)
Heubach Holding S R L · LU Luxembourg
Heubach Holdings Sarl · LU Luxembourg
Hallmark Cards
Hct
Heubach Holding Usa
Show all 9
Pigments Services
Target
Toyo Ink America
Trust Chem Usa Llc.

Why It Matters

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

Industrial Uses

Used in 12 sectors as 2 functional roles.

  • •Pigment in Printing Ink ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Plastics Material and Resin ManufacturingProcessing—incorporation into article
  • •Intermediate in Printing Ink ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Printing and Related Support ActivitiesProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Synthetic Rubber ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Rubber Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Not Known or Reasonably Ascertainable (14%)Processing—incorporation into article
  • •Pigment in Paint and Coating Manufacturing (16%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (9%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Custom Compounding of Purchased Resins (1%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Wholesale and Retail Trade (1%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Plastics Product Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Synthetic Dye and Pigment Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS5281-04-9
PubChem CID135423095
DTXSIDDTXSID7027594
FormulaC18H12CaN2O6S
Mol. Weight424.4 g/mol
SMILESCC1=CC(=C(C=C1)N=NC2=C(C(=CC3=CC=CC=C32)C(=O)O)[O-])S(=O)(=O)[O-].[Ca+2]

Data Sources

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Brief citations

C.I. Pigment Red 57, calcium salt (1:1) (CAS 5281-04-9) https://chemicalindependence.com/chemical/5281-04-9/ EPA CompTox (DSSTox): DTXSID7027594. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7027594 PubChem: 135423095. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/135423095 EPA Chemical Data Reporting: 5281-04-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5281-04-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 320417 for CAS 5281-04-9. Reporting year: 2024. https://usatrade.census.gov/