Benzothiazole, 2-[(chloromethyl)thio]-

CAS 28908-00-1

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$104M

Import volumeZero

Top sourceChina 56%

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 293420 · basket

EPA reports by year

2023: US production Confidential · Imports Zero
2019: US production 1.2M lb · Imports Zero

These shares come from HS customs code 293420, which covers 76 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 56%ChinaBE 33%BelgiumIN 4%IndiaIT 3%ItalyES 2%Spain

Japan
Canada
Ireland
Slovakia
Ukraine
United Kingdom
Taiwan
Germany
Netherlands
South Korea
Switzerland
Greece
Croatia

EPA-registered manufacturers (1)

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

Buckman Laboratories

Why It Matters

Sectors

Agriculture

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 Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant

Vendor Pricing

$852.00/gAaron Chemicals LLC

CountryHong Kong

Pack$852.00 / 1 g

Purity95%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$960.00	1 g	95%
Angene Chemical	China → Hong Kong	$975.00	1 g	95%
A2B Chem LLC	United States	$980.00	250 mg	95%
AA BLOCKS	United States	$1088.00	250 mg	95%
Ambeed, Inc.	United States	$1107.00	1 g	95%
Life Chemicals Inc.	Ukraine → Canada	$1228.00	500 mg	95%
AstaTech (2 weeks)	United States	$1674.00	1 g	95%

Chemical Identity

CAS28908-00-1

PubChem CID120092

DTXSIDDTXSID4027949

FormulaC8H6ClNS2

Mol. Weight215.7 g/mol

SMILESC1=CC=C2C(=C1)N=C(S2)SCCl

Data Sources

EPA CompTox (DSSTox) · DTXSID4027949Retrieved 2026-04-06
PubChem · compound 120092Retrieved 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

Benzothiazole, 2-[(chloromethyl)thio]- (CAS 28908-00-1) https://chemicalindependence.com/chemical/28908-00-1/ EPA CompTox (DSSTox): DTXSID4027949. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4027949 PubChem: 120092. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/120092 EPA Chemical Data Reporting: 28908-00-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 28908-00-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293420 for CAS 28908-00-1. Reporting year: 2024. https://usatrade.census.gov/