C.I. Disperse Black 6 dihydrochloride

CAS 20325-40-0

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

Molecular structure of 20325-40-0 — 2 HCl

US productionCBI

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

Import value, 2024$64M

Top sourceChina 52%

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 292229 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 292229, which covers 84 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).

CN 52%ChinaJP 25%JapanIN 18%IndiaIT 3%ItalyKR 1%South Korea

United Kingdom
Ukraine
Canada
Switzerland
Ireland
Netherlands
Israel
Singapore
Latvia
Hong Kong
Belgium

Why It Matters

Sectors

TextilesPaper & Printing

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 2 sectors as 1 functional role.

•Pigment in Printing Ink ManufacturingProcessing as a reactant
•Pigment in Synthetic Dye and Pigment Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$1.18/gCombi-Blocks, Inc.

CountryUnited States

Pack$590.00 / 500 g

Purity90%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
Fluorochem UK	United Kingdom	$1.43	100 g	98%
AK Scientific Specialized	United States	$1.60	100 g	95%
AK Scientific, Inc.	United States	$1.76	500 g	98%
Cayman Europe	Estonia	$9.39	100 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$14.30	100 g	95%
Sigma-Aldrich	Germany	$14.30	100 g	95%
Labotest KG	Germany	$453.00	1000 mg	90%

Chemical Identity

CAS20325-40-0

PubChem CID62311

DTXSIDDTXSID1020485

FormulaC14H18Cl2N2O2

Mol. Weight317.2 g/mol

SMILESCOC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)OC)N.Cl.Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID1020485Retrieved 2026-04-06
PubChem · compound 62311Retrieved 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

C.I. Disperse Black 6 dihydrochloride (CAS 20325-40-0) https://chemicalindependence.com/chemical/20325-40-0/ EPA CompTox (DSSTox): DTXSID1020485. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1020485 PubChem: 62311. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/62311 EPA Chemical Data Reporting: 20325-40-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 20325-40-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292229 for CAS 20325-40-0. Reporting year: 2024. https://usatrade.census.gov/