Ammonium sulfide ((NH4)2S)

CAS 12135-76-1

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

H₈N₂S68.2 g/mol

no molecular structure to draw

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$23M

Top sourceAustria 29%

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 283090 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 283090, which covers 34 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).

AT 29%AustriaDE 17%GermanyGB 13%United KingdomCN 9%ChinaIN 8%India

Philippines
Mexico
Netherlands
Malaysia
Singapore

EPA-registered manufacturers (4)

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

Chemical Products

Chs

Jupiter Sulphur

Marathon Petroleum

Why It Matters

Sectors

AgricultureEnergy

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

Used in 3 sectors as 2 functional roles.

•Intermediate in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing as a reactant
•Intermediate in Petroleum Refineries (100%)Processing as a reactant
•Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant
•Intermediate in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS12135-76-1

PubChem CID25519

DTXSIDDTXSID60893218

FormulaH8N2S

Mol. Weight68.15 g/mol

SMILES[NH4+].[NH4+].[S-2]

Data Sources

EPA CompTox (DSSTox) · DTXSID60893218Retrieved 2026-04-06
PubChem · compound 25519Retrieved 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

Ammonium sulfide ((NH4)2S) (CAS 12135-76-1) https://chemicalindependence.com/chemical/12135-76-1/ EPA CompTox (DSSTox): DTXSID60893218. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID60893218 PubChem: 25519. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/25519 EPA Chemical Data Reporting: 12135-76-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12135-76-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283090 for CAS 12135-76-1. Reporting year: 2024. https://usatrade.census.gov/