2-Chlorobutane

CAS 78-86-4

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 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. 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

2023: US production Confidential · Imports Confidential
2019: US production Zero · Imports 340.0K lb

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

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.

Albemarle

EPA-registered importers (1)

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

Livent Lithium

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 1 functional role.

•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Intermediate in All Other Basic Inorganic Chemical Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.25/gCombi-Blocks, Inc.

CountryUnited States

Pack$250.00 / 1 kg

Purity98%

Vendors4 available

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

3 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$0.27	1 kg	98%
AA BLOCKS	United States	$0.28	1 kg	98%
Labotest KG	Germany	$217.80	5000 mg	90%

Chemical Identity

CAS78-86-4

PubChem CID6563

DTXSIDDTXSID9023966

FormulaC4H9Cl

Mol. Weight92.57 g/mol

SMILESCCC(C)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID9023966Retrieved 2026-04-06
PubChem · compound 6563Retrieved 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

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Brief citations

2-Chlorobutane (CAS 78-86-4) https://chemicalindependence.com/chemical/78-86-4/ EPA CompTox (DSSTox): DTXSID9023966. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9023966 PubChem: 6563. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6563 EPA Chemical Data Reporting: 78-86-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 78-86-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290319 for CAS 78-86-4. Reporting year: 2024. https://usatrade.census.gov/