Allura Red C.I.16035

CAS 25956-17-6

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

Molecular structure of 25956-17-6 — 2 Na⁺

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$56M

Top sourceIndia 70%

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 320412 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports 89.8K lb

These shares come from HS customs code 320412, which covers 106 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

IN 70%IndiaMY 7%MalaysiaCH 4%SwitzerlandCN 4%ChinaDE 3%Germany

Ireland
United Kingdom
Spain
South Korea
Denmark
Pakistan
Hong Kong
Czech Republic
Brazil
Turkey

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Dystar

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Sensient Colors

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Aakash Chemicals

Target

Why It Matters

Sectors

AgricultureFoodTextiles

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 3 sectors as 1 functional role.

•Dye in Agriculture, Forestry, Fishing and Hunting (10%)Processing—incorporation into formulation, mixture, or reaction product
•Dye in Food, beverage, and tobacco product manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
•Dye in Synthetic Dye and Pigment Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS25956-17-6

PubChem CID33258

DTXSIDDTXSID4024436

FormulaC18H14N2Na2O8S2

Mol. Weight496.4 g/mol

SMILESCC1=CC(=C(C=C1S(=O)(=O)[O-])OC)N=NC2=C(C=CC3=C2C=CC(=C3)S(=O)(=O)[O-])O.[Na+].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID4024436Retrieved 2026-04-06
PubChem · compound 33258Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Allura Red C.I.16035 (CAS 25956-17-6) https://chemicalindependence.com/chemical/25956-17-6/ EPA CompTox (DSSTox): DTXSID4024436. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4024436 PubChem: 33258. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/33258 EPA Chemical Data Reporting: 25956-17-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25956-17-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 320412 for CAS 25956-17-6. Reporting year: 2024. https://usatrade.census.gov/