t-Butylchloride

CAS 507-20-0

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 importers (1)

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

Evonik

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

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

Vendor Pricing

$0.25/gCombi-Blocks, Inc.

CountryUnited States

Pack$250.00 / 1 kg

Purity98%

Vendors7 available

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

6 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%
Fluorochem UK	United Kingdom	$45.76	2.5 g	95%
Labotest KG	Germany	$217.80	5000 mg	90%
Otava, Ltd.	Ukraine	$2280.00	50 mg	95%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	95%

Chemical Identity

CAS507-20-0

PubChem CID10486

DTXSIDDTXSID2023937

FormulaC4H9Cl

Mol. Weight92.57 g/mol

SMILESCC(C)(C)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID2023937Retrieved 2026-04-06
PubChem · compound 10486Retrieved 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

t-Butylchloride (CAS 507-20-0) https://chemicalindependence.com/chemical/507-20-0/ EPA CompTox (DSSTox): DTXSID2023937. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2023937 PubChem: 10486. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10486 EPA Chemical Data Reporting: 507-20-0. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 507-20-0. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290319 for CAS 507-20-0. Reporting year: 2024. https://usatrade.census.gov/