Ethylcyclohexane

CAS 1678-91-7

Cyclohexane, ethyl-

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import value, 2024$90M

Import volume14.9K lb

Import dependency100%

Top sourceJapan 21%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Ethylcyclohexane · US import value by year

2013: $75M · Peak 2018: $116M · 2024: $90M · 2025: $77M

Where It Comes From

Customs basis: HS 290219 · basket

EPA reports by year

2023: US production Zero · Imports 14.9K lb

These shares come from HS customs code 290219, which covers 108 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).

JP 21%JapanBR 12%BrazilTW 12%TaiwanKR 11%South KoreaDE 9%Germany

Russia
United Kingdom
Indonesia
South Africa
Ukraine
Madagascar
Hungary
Hong Kong
Czech Republic
Israel

EPA-registered importers (2)

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

Shin-Etsu Chemical · JP Japan

Shin-Etsu Microsi

Why It Matters

Sectors

Metals & Mining

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

•Solvent in Other (100%)Processing—repackaging

Vendor Pricing

$1.80/gCombi-Blocks, Inc.

CountryUnited States

Pack$180.00 / 100 g

Purity98%

Vendors6 available

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

5 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$1.80	100 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$2.01	100 g	99%
Sigma-Aldrich	Germany	$2.01	100 g	99%
AA BLOCKS	United States	$2.07	100 g	98%
Labotest KG	Germany	$217.80	5000 mg	90%

Chemical Identity

CAS1678-91-7

PubChem CIDNot recorded

DTXSIDDTXSID1051779

FormulaC8H16

Mol. Weight112.216 g/mol

SMILESCCC1CCCCC1

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
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

Ethylcyclohexane (CAS 1678-91-7) https://chemicalindependence.com/chemical/1678-91-7/ EPA TSCA Inventory: CAS 1678-91-7. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 1678-91-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1678-91-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290219 for CAS 1678-91-7. Reporting year: 2024. https://usatrade.census.gov/