2-Butyl-1H-isoindole-1,3(2H)-dione

CAS 1515-72-6

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.

Import volumeZero

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 Zero
2019: US production 2.1M lb · Imports Zero

EPA-registered manufacturers (2)

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

Dystar

Piedmont Chemical Industries I

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.

Polyventive

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

Used in 1 sector as 2 functional roles.

•Swelling agent in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.41/gAaron Chemicals LLC

CountryHong Kong

Pack$205.00 / 500 g

Purity99%

Vendors21 available

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

20 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.43	500 g	99%
BLD Pharmatech GmbH	Germany	$0.45	100 g	98%
BLD Pharmatech Ltd.	China	$0.45	100 g	98%
A2B Chem LLC	United States	$0.45	100 g	98%
Combi-Blocks, Inc.	United States	$0.45	100 g	98%
MedChemExpress MCE	Sweden	$0.54	100 g	—
AA BLOCKS	United States	$0.57	100 g	98%
BLD Pharmatech Co., Limited	United States	$0.60	25 g	98%
Ambeed, Inc.	United States	$0.60	25 g	98%
AK Scientific Specialized	United States	$1.64	25 g	95%
AK Scientific, Inc.	United States	$2.24	25 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$2.49	100 g	97%
Sigma-Aldrich	Germany	$2.49	100 g	97%
Angene International Limited	United States	$4.88	25 g	98%
ALFA AESAR	Germany	$5.04	25 g	99%
AstaTech (2 weeks)	United States	$40.00	1 g	95%
Labotest KG	Germany	$217.80	5000 mg	90%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	99%

Chemical Identity

CAS1515-72-6

PubChem CID73812

DTXSIDDTXSID8044591

FormulaC12H13NO2

Mol. Weight203.24 g/mol

SMILESCCCCN1C(=O)C2=CC=CC=C2C1=O

Data Sources

EPA CompTox (DSSTox) · DTXSID8044591Retrieved 2026-04-06
PubChem · compound 73812Retrieved 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

2-Butyl-1H-isoindole-1,3(2H)-dione (CAS 1515-72-6) https://chemicalindependence.com/chemical/1515-72-6/ EPA CompTox (DSSTox): DTXSID8044591. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8044591 PubChem: 73812. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/73812 EPA Chemical Data Reporting: 1515-72-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1515-72-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting