Reactive Blue 19

CAS 2580-78-1

Used in 1 industrial sector tracked by the EPA.

Molecular structure of 2580-78-1 — 2 Na⁺

US productionNot reported

Import value, 2024$760M

Top sourceChina 33%

EPA lists this chemical for 2023 but publishes zero or no volume for both production and imports.

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 293090 · basket

EPA reports by year

2023: US production Not published · Imports Not published
2019: US production Not published · Imports Not published

These shares come from HS customs code 293090, which covers 418 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 33%ChinaES 14%SpainCH 9%SwitzerlandIT 7%ItalyIN 7%India

Israel
Croatia
Ukraine
Slovakia
United Arab Emirates
Ireland
Poland
Lithuania
Brazil
Singapore
Australia
Armenia
Hong Kong
Vietnam
Czech Republic
Hungary
Greece
Russia

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.

Dystar

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 (0%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.19/gA2B Chem LLC

CountryUnited States

Pack$191.00 / 1 kg

Purity100%

Vendors16 available

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

15 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.21	1 kg	100%
BLD Pharmatech Ltd.	China	$0.27	1 kg	95%
Ambeed, Inc.	United States	$0.27	1 kg	95%
Aaron Chemicals LLC	Hong Kong	$0.29	500 g	—
Angene Chemical	China → Hong Kong	$0.31	500 g	—
BLD Pharmatech Co., Limited	United States	$0.32	500 g	95%
BLD Pharmatech GmbH	Germany	$0.32	500 g	95%
Fluorochem EU	Germany	$0.68	25 g	100%
AstaTech, Inc	United States	$2.52	25 g	95%
Sigma-Aldrich (Rush Stock)	Germany	$3.37	25 g	—
Sigma-Aldrich	Germany	$3.37	25 g	—
AK Scientific Specialized	United States	$7.00	25 g	90%
AK Scientific, Inc.	United States	$9.36	25 g	95%
Angene International Limited	United States	$12.16	25 g	90%
Angene	China → Hong Kong	$4266.67	30 mg	—

Chemical Identity

CAS2580-78-1

PubChem CID17409

DTXSIDDTXSID5025992

FormulaC22H16N2Na2O11S3

Mol. Weight626.5 g/mol

SMILESC1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C=C3NC4=CC(=CC=C4)S(=O)(=O)CCOS(=O)(=O)[O-])S(=O)(=O)[O-])N.[Na+].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID5025992Retrieved 2026-04-06
PubChem · compound 17409Retrieved 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

Reactive Blue 19 (CAS 2580-78-1) https://chemicalindependence.com/chemical/2580-78-1/ EPA CompTox (DSSTox): DTXSID5025992. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5025992 PubChem: 17409. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/17409 EPA Chemical Data Reporting: 2580-78-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 2580-78-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293090 for CAS 2580-78-1. Reporting year: 2024. https://usatrade.census.gov/