1,4-Dichlorobutane

CAS 110-56-5

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 value, 2024$26M

Top sourceBrazil 54%

At least one company claimed its 2019 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: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290319 · basket

EPA reports by year

2019: US production Confidential · Imports Confidential

These shares come from HS customs code 290319, which covers 47 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).

BR 54%BrazilDE 30%GermanyCN 10%ChinaIN 6%India

Malaysia
United Kingdom
Czech Republic
Switzerland
Japan
Netherlands
Ukraine

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.

Occidental Petroleum

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.

Shrieve Chemical

Why It Matters

Sectors

Core Chemicals

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 2 functional roles.

•Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
•Fire extinguishing agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.12/gAK Scientific, Inc.

CountryUnited States

Pack$123.00 / 1 kg

Purity98%

Vendors9 available

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

8 more vendors

Vendor	Country	$/g	Pack	Purity
ALFA AESAR	Germany	$0.13	1 kg	97%
Sigma-Aldrich (Rush Stock)	Germany	$0.18	1 kg	99%
Sigma-Aldrich	Germany	$0.18	1 kg	99%
Combi-Blocks, Inc.	United States	$0.25	1 kg	95%
A2B Chem LLC	United States	$0.27	1 kg	95%
AA BLOCKS	United States	$0.28	1 kg	98%
Fluorochem UK	United Kingdom	$0.93	100 g	—
Labotest KG	Germany	$217.80	5000 mg	90%

Chemical Identity

CAS110-56-5

PubChem CID8059

DTXSIDDTXSID5021918

FormulaC4H8Cl2

Mol. Weight127.01 g/mol

SMILESC(CCCl)CCl

Data Sources

EPA CompTox (DSSTox) · DTXSID5021918Retrieved 2026-04-06
PubChem · compound 8059Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

1,4-Dichlorobutane (CAS 110-56-5) https://chemicalindependence.com/chemical/110-56-5/ EPA CompTox (DSSTox): DTXSID5021918. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5021918 PubChem: 8059. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8059 EPA Chemical Data Reporting: 110-56-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 110-56-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290319 for CAS 110-56-5. Reporting year: 2024. https://usatrade.census.gov/