(9Z)-9-Octadecenoyl chloride

CAS 112-77-6

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$117M

Import volumeZero

Top sourceChina 50%

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 291619 · basket

EPA reports by year

2023: US production Confidential · Imports Zero
2019: US production 1.7M lb · Imports Zero

These shares come from HS customs code 291619, which covers 169 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 50%ChinaDE 21%GermanyTW 12%TaiwanIN 7%IndiaGB 3%United Kingdom

Hungary
Spain
Japan
Belgium
Ukraine
Netherlands
Sweden
Poland
Israel
Brazil
Malaysia
Slovakia
Morocco

EPA-registered manufacturers (2)

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

Cymer

Lanxess

Why It Matters

Sectors

ConstructionCore 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 2 functional roles.

•Intermediate in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Surfactant (surface active agent) in Construction (100%)Processing as a reactant

Chemical Identity

CAS112-77-6

PubChem CID5364783

DTXSIDDTXSID70893143

FormulaC18H33ClO

Mol. Weight300.9 g/mol

SMILESCCCCCCCCC=CCCCCCCCC(=O)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID70893143Retrieved 2026-04-06
PubChem · compound 5364783Retrieved 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

(9Z)-9-Octadecenoyl chloride (CAS 112-77-6) https://chemicalindependence.com/chemical/112-77-6/ EPA CompTox (DSSTox): DTXSID70893143. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70893143 PubChem: 5364783. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/5364783 EPA Chemical Data Reporting: 112-77-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 112-77-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291619 for CAS 112-77-6. Reporting year: 2024. https://usatrade.census.gov/