1,2,3-Benzothiadiazole-7-carboxylic acid

CAS 35272-27-6

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.

Top sourceNo public record

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.

Where It Comes From

EPA reports by year

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

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.

W. R. Grace & Co. - Conn.

Why It Matters

Sectors

Agriculture

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 Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant

Vendor Pricing

$227.60/gAaron Chemicals LLC

CountryHong Kong

Pack$1138.00 / 5 g

Purity97%

Vendors11 available

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

10 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$241.00	5 g	97%
Chemscene	United States	$241.40	5 g	—
Angene Chemical	China → Hong Kong	$243.20	5 g	97%
A2B Chem LLC	United States	$280.00	1 g	97%
AstaTech (2 weeks)	United States	$287.20	5 g	95%
AA BLOCKS	United States	$340.00	1 g	97%
Advamacs	Poland	$1920.00	250 mg	—
Otava, Ltd.	Ukraine	$2724.00	50 mg	90%
Sigma-Aldrich (Rush Stock)	Germany	$4626.60	50 mg	—
Sigma-Aldrich	Germany	$4626.60	50 mg	—

Chemical Identity

CAS35272-27-6

PubChem CID10921109

DTXSIDDTXSID40885616

FormulaC7H4N2O2S

Mol. Weight180.19 g/mol

SMILESC1=CC(=C2C(=C1)N=NS2)C(=O)O

Data Sources

EPA CompTox (DSSTox) · DTXSID40885616Retrieved 2026-04-06
PubChem · compound 10921109Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

1,2,3-Benzothiadiazole-7-carboxylic acid (CAS 35272-27-6) https://chemicalindependence.com/chemical/35272-27-6/ EPA CompTox (DSSTox): DTXSID40885616. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID40885616 PubChem: 10921109. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10921109 EPA Chemical Data Reporting: 35272-27-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 35272-27-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting