1,3,5-Trichlorobenzene

CAS 108-70-3

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

US productionZero

Import value, 2024$108M

Import volume16.3K lb

Import dependency100%

Top sourceChina 77%

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.

1,3,5-Trichlorobenzene · US import value by year

2013: $115M · Peak 2022: $191M · 2024: $108M · 2025: $106M

Where It Comes From

Customs basis: HS 290399 · basket

EPA reports by year

2023: US production Zero · Imports 16.3K lb
2019: US production Zero · Imports Zero

These shares come from HS customs code 290399, which covers 178 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 77%ChinaIN 7%IndiaDE 7%GermanyJP 5%JapanIT 2%Italy

Ukraine
United Kingdom
Israel
Taiwan
Russia
Hong Kong
Canada
Ireland
Latvia

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.

Lacamas Laboratories

Why It Matters

Sectors

Core 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

•Propellants and blowing agents in Explosives Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.25/gCombi-Blocks, Inc.

CountryUnited States

Pack$250.00 / 1 kg

Purity95%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich (Rush Stock)	Germany	$0.28	500 g	99%
Sigma-Aldrich	Germany	$0.28	500 g	99%
ALFA AESAR	Germany	$0.42	250 g	98%
Labotest KG	Germany	$217.80	5000 mg	90%
Key Organics Ltd.	United Kingdom	$1960.00	100 mg	90%
Otava, Ltd.	Ukraine	$2280.00	50 mg	95%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	95%

Chemical Identity

CAS108-70-3

PubChem CID7950

DTXSIDDTXSID8026195

FormulaC6H3Cl3

Mol. Weight181.4 g/mol

SMILESC1=C(C=C(C=C1Cl)Cl)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID8026195Retrieved 2026-04-06
PubChem · compound 7950Retrieved 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

1,3,5-Trichlorobenzene (CAS 108-70-3) https://chemicalindependence.com/chemical/108-70-3/ EPA CompTox (DSSTox): DTXSID8026195. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8026195 PubChem: 7950. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7950 EPA Chemical Data Reporting: 108-70-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 108-70-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290399 for CAS 108-70-3. Reporting year: 2024. https://usatrade.census.gov/