3-Methyl-2-benzothiazolone hydrazone hydrochloride

CAS 4338-98-1

2(3H)-Benzothiazolone, 3-methyl-, hydrazone, hydrochloride (1:1)

Molecular structure of 4338-98-1
1 HCl
US productionNot reported
Import value, 2024$104M
Top sourceChina 56%

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 293420 · basket

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
CN 56%ChinaBE 33%BelgiumIN 4%IndiaIT 3%ItalyES 2%Spain

Why It Matters

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

Vendor Pricing

$6.88/gAA BLOCKS (2 weeks)
CountryUnited States
Pack$172.00 / 25 g
Purity98%
Vendors2 available

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

Chemical Identity

CAS4338-98-1
PubChem CIDNot recorded
DTXSIDDTXSID60884060
FormulaC8H10ClN3S
Mol. Weight215.7 g/mol
SMILESCl.CN1C(SC2=CC=CC=C12)=NN

Data Sources

Brief citations

3-Methyl-2-benzothiazolone hydrazone hydrochloride (CAS 4338-98-1) https://chemicalindependence.com/chemical/4338-98-1/ EPA TSCA Inventory: CAS 4338-98-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293420 for CAS 4338-98-1. Reporting year: 2024. https://usatrade.census.gov/