p-Chlorophenylacetic acid

CAS 1878-66-6

Benzeneacetic acid, 4-chloro-

Molecular structure of 1878-66-6
US productionNot reported
Import value, 2024$84M
Top sourceChina 63%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 291639 · basket

These shares come from HS customs code 291639, which covers 229 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 63%ChinaIT 19%ItalyIN 8%IndiaDE 4%GermanyCH 3%Switzerland

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$0.03/gAaron Chemicals LLC
CountryHong Kong
Pack$14.00 / 500 g
Purity98%
Vendors35 available

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

Chemical Identity

CAS1878-66-6
PubChem CIDNot recorded
DTXSIDDTXSID7062031
FormulaC8H7ClO2
Mol. Weight170.59 g/mol
SMILESOC(=O)CC1=CC=C(Cl)C=C1

Data Sources

Brief citations

p-Chlorophenylacetic acid (CAS 1878-66-6) https://chemicalindependence.com/chemical/1878-66-6/ EPA TSCA Inventory: CAS 1878-66-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291639 for CAS 1878-66-6. Reporting year: 2024. https://usatrade.census.gov/