C.I. Basic Blue 41

CAS 12270-13-2

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

US productionCBI

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

Import value, 2024$24M

Top sourceIndia 35%

At least one company claimed its 2019 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: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 320413 · basket

EPA reports by year

2019: US production Confidential · Imports Confidential

These shares come from HS customs code 320413, which covers 64 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 35%IndiaMX 27%MexicoDE 16%GermanyTW 3%TaiwanCN 3%China

Pakistan
South Korea
Turkey
Sweden
Slovakia
Netherlands
Yemen
Liechtenstein

EPA-registered importers (1)

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

Huntsman

Why It Matters

Sectors

Textiles

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

•Dye in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into article

Vendor Pricing

$89.40/gAK Scientific, Inc.

CountryUnited States

Pack$447.00 / 5 g

Purity95%

Vendors4 available

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

3 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$96.20	5 g	95%
AA BLOCKS	United States	$99.40	5 g	95%
Angene International Limited	United States	$144.20	5 g	95%

Chemical Identity

CAS12270-13-2

PubChem CID83008

DTXSIDDTXSID3051624

FormulaC20H26N4O6S2

Mol. Weight482.6 g/mol

SMILESCCN(CCO)C1=CC=C(C=C1)N=NC2=[N+](C3=C(S2)C=C(C=C3)OC)C.COS(=O)(=O)[O-]

Data Sources

EPA CompTox (DSSTox) · DTXSID3051624Retrieved 2026-04-06
PubChem · compound 83008Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

C.I. Basic Blue 41 (CAS 12270-13-2) https://chemicalindependence.com/chemical/12270-13-2/ EPA CompTox (DSSTox): DTXSID3051624. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3051624 PubChem: 83008. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/83008 EPA Chemical Data Reporting: 12270-13-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12270-13-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 320413 for CAS 12270-13-2. Reporting year: 2024. https://usatrade.census.gov/