Ethanedioyl dichloride

CAS 79-37-8

Companies reported imports and no US production of this chemical to EPA for 2019.

US productionZero

Import value, 2024$139M

Import volume49.3K lb

Import dependency100%

Top sourceChina 67%

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Ethanedioyl dichloride · US import value by year

2013: $117M · Peak 2022: $187M · 2024: $139M · 2025: $118M

Where It Comes From

Customs basis: HS 291719 · basket

EPA reports by year

2023: US production Not published · Imports Not published
2019: US production Zero · Imports 49.3K lb

These shares come from HS customs code 291719, which covers 176 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).

CN 67%ChinaCA 13%CanadaAT 4%AustriaIN 4%IndiaJP 4%Japan

Taiwan
Netherlands
Switzerland
Mexico
South Africa
Denmark
Malaysia
Ukraine
Colombia
Hong Kong
Slovakia

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.

Cellmark Usa, Llc.

Why It Matters

Sectors

Health

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 Pharmaceutical and Medicine ManufacturingProcessing as a reactant

Vendor Pricing

$0.14/gA2B Chem LLC

CountryUnited States

Pack$72.00 / 500 g

Purity98%

Vendors7 available

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

6 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.18	500 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$0.46	2.5 kg	98%
Sigma-Aldrich	Germany	$0.46	2.5 kg	98%
AK Scientific, Inc.	United States	$0.66	500 g	98%
AstaTech, Inc	United States	$0.95	100 g	95%
Interbioscreen	Hong Kong	$10.00	10 g	95%

Chemical Identity

CAS79-37-8

PubChem CID65578

DTXSIDDTXSID3058822

FormulaC2Cl2O2

Mol. Weight126.92 g/mol

SMILESC(=O)(C(=O)Cl)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID3058822Retrieved 2026-04-06
PubChem · compound 65578Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · 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

Ethanedioyl dichloride (CAS 79-37-8) https://chemicalindependence.com/chemical/79-37-8/ EPA CompTox (DSSTox): DTXSID3058822. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3058822 PubChem: 65578. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/65578 EPA Chemical Data Reporting: 79-37-8. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 79-37-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291719 for CAS 79-37-8. Reporting year: 2024. https://usatrade.census.gov/