Ethanedioic acid, ammonium salt (1:2)

CAS 1113-38-8

EPA’s 2023 records show zero U.S. production of this chemical.

Molecular structure of 1113-38-8 — 2 NH₄⁺

US productionZero

Import value, 2024$11M

Import volumeCBI

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

Top sourceSpain 45%

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. 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 291711 · basket

EPA reports by year

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

These shares come from HS customs code 291711, which covers 29 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).

ES 45%SpainCN 25%ChinaIN 10%IndiaTW 6%TaiwanIT 6%Italy

Belgium
Switzerland
Japan

Why It Matters

Sectors

Plastics & Rubber

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 Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS1113-38-8

PubChem CID14213

DTXSIDDTXSID50889443

FormulaC2H8N2O4

Mol. Weight124.1 g/mol

SMILESC(=O)(C(=O)[O-])[O-].[NH4+].[NH4+]

Data Sources

EPA CompTox (DSSTox) · DTXSID50889443Retrieved 2026-04-06
PubChem · compound 14213Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Plastics & Rubber

Brief citations

Ethanedioic acid, ammonium salt (1:2) (CAS 1113-38-8) https://chemicalindependence.com/chemical/1113-38-8/ EPA CompTox (DSSTox): DTXSID50889443. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50889443 PubChem: 14213. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/14213 EPA Chemical Data Reporting: 1113-38-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1113-38-8. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291711 for CAS 1113-38-8. Reporting year: 2024. https://usatrade.census.gov/