4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid

CAS 119-40-4

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$64M

Import volumeCBI

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

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. 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 Zero · Imports Confidential
2019: US production Not published · Imports Not published

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

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.

Wego Chemical Group

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.

Archroma Management Gmbh · CH Switzerland

Archroma U.S

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

•Intermediate in Synthetic Dye and Pigment Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.69/gAstaTech (2 weeks)

CountryUnited States

Pack$345.00 / 500 g

Purity96%

Vendors13 available

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

12 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$0.85	500 g	95%
Aaron Chemicals LLC	Hong Kong	$0.91	500 g	95%
Angene Chemical	China → Hong Kong	$0.92	500 g	95%
AA BLOCKS	United States	$1.11	500 g	97%
Chemscene	United States	$1.78	100 g	—
AK Scientific Specialized	United States	$1.78	100 g	95%
Combi-Blocks, Inc.	United States	$1.78	100 g	95%
Synthonix	United States	$2.20	100 g	95%
MedChemExpress MCE	Sweden	$2.23	25 g	—
AK Scientific, Inc.	United States	$2.38	100 g	97%
Angene International Limited	United States	$4.01	100 g	97%
Angene	China → Hong Kong	$4266.67	30 mg	95%

Chemical Identity

CAS119-40-4

PubChem CID67065

DTXSIDDTXSID0044787

FormulaC16H13NO4S

Mol. Weight315.3 g/mol

SMILESC1=CC=C(C=C1)NC2=CC3=CC(=CC(=C3C=C2)O)S(=O)(=O)O

Data Sources

EPA CompTox (DSSTox) · DTXSID0044787Retrieved 2026-04-06
PubChem · compound 67065Retrieved 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

← Back to Dashboard ← Back to Textiles

Brief citations

4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid (CAS 119-40-4) https://chemicalindependence.com/chemical/119-40-4/ EPA CompTox (DSSTox): DTXSID0044787. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0044787 PubChem: 67065. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/67065 EPA Chemical Data Reporting: 119-40-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 119-40-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292229 for CAS 119-40-4. Reporting year: 2024. https://usatrade.census.gov/