4-tert-Butylcyclohexyl chloroformate

CAS 42125-46-2

EPA’s 2019 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$384M

Top sourceMalaysia 21%

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

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.

Where It Comes From

Customs basis: HS 291590 · basket

EPA reports by year

2019: US production Zero · Imports Zero

These shares come from HS customs code 291590, which covers 588 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).

MY 21%MalaysiaDE 13%GermanyNL 13%NetherlandsMX 10%MexicoIT 8%Italy

Singapore
Austria
United Kingdom
Philippines
Canada
Hungary
Turkey
Ukraine
Israel
Denmark
Czech Republic
Slovakia
Norway
Poland
Hong Kong
South Africa
Russia

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.

Altivia Specialty Chemicals

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

•Intermediate in Other (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS42125-46-2

PubChem CID170608

DTXSIDDTXSID0052093

FormulaC11H19ClO2

Mol. Weight218.72 g/mol

SMILESCC(C)(C)C1CCC(CC1)OC(=O)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID0052093Retrieved 2026-04-06
PubChem · compound 170608Retrieved 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

4-tert-Butylcyclohexyl chloroformate (CAS 42125-46-2) https://chemicalindependence.com/chemical/42125-46-2/ EPA CompTox (DSSTox): DTXSID0052093. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0052093 PubChem: 170608. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/170608 EPA Chemical Data Reporting: 42125-46-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 42125-46-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291590 for CAS 42125-46-2. Reporting year: 2024. https://usatrade.census.gov/