2-Mercaptobenzimidazole

CAS 583-39-1

U.S. production volumes are classified as confidential business information.

Molecular structure of 583-39-1
US productionCBI
Import value, 2024$1.4B
Top sourceIreland 33%

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 293399 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 293399, which covers 518 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 33%IrelandCN 26%ChinaIN 11%IndiaDE 9%GermanyIT 4%Italy

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Heat stabilizer in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$8.00 / 500 g
Purity97%
Vendors24 available

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

Chemical Identity

CAS583-39-1
PubChem CID707035
DTXSIDDTXSID9025536
FormulaC7H6N2S
Mol. Weight150.2 g/mol
SMILESC1=CC=C2C(=C1)NC(=S)N2

Data Sources

Brief citations

2-Mercaptobenzimidazole (CAS 583-39-1) https://chemicalindependence.com/chemical/583-39-1/ EPA CompTox (DSSTox): DTXSID9025536. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9025536 PubChem: 707035. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/707035 EPA Chemical Data Reporting: 583-39-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 583-39-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293399 for CAS 583-39-1. Reporting year: 2024. https://usatrade.census.gov/