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Oxalic acid dihydrate

Drug ingredient

CAS 6153-56-6

This drug ingredient has classified U.S. production volumes. EPA withholds the number as confidential business information.

Molecular structure of 6153-56-6
2 H₂O
US productionCBI
Import value, 2024$11M
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. 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 291711 · basket

EPA reports by year
2023
US production Confidential · 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
ES 45%SpainCN 25%ChinaIN 10%IndiaTW 6%TaiwanIT 6%Italy
EPA-registered manufacturers (1)
Macdermid
Domestic parents -- activity not disclosed (2)
Blue Tree Holdings
Si Group
EPA-registered importers (7)
Kh Chemicals International B V · NL Netherlands
Astro Chemicals
Brenntag
Kh Chemicals Na
Servaas Laboratories D.B.A Bar Keepers Friend
Show all 7
Solenis
Wego Chemical Group
9 FDA-registered drug labelers
Bhp Holdings, Inc.
Boiron
Energique, Inc.
Hahnemann Laboratories, INC.
King Bio Inc.
Nucleic Products, LLC
Nutritional Specialties, Inc.
Seroyal USA
Vitality Works, Inc.

Why It Matters

Sectors
HealthPlastics & RubberConsumer ProductsCore Chemicals
Downstream Uses

Appears in 13 drug and cosmetic product listings (FDA).

  • •Oxaltem
  • •Acidum Oxalicum
  • •Multi Food Antigens
  • •Renal Health Formula
  • •Myco Immuno Nosode
  • •Fem Repair Non-Preg
  • •Mast Cell Pro
  • •Oxalicum acidum
Show all 13
  • •Fungisode
  • •Back, Muscle and Joint Relief
  • •RPT-Sys
  • •911 Adrenal Burnout and Fatigue
  • •LY-CO
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 5 functional roles.

  • •Cleaning agent in Soap, Cleaning Compound, and Toilet Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Polymerization promoter in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Plating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Etching agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Chelating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS6153-56-6
PubChem CID61373
DTXSIDDTXSID2075003
FormulaC2H6O6
Mol. Weight126.07 g/mol
SMILESC(=O)(C(=O)O)O.O.O

Data Sources

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Brief citations

Oxalic acid dihydrate (CAS 6153-56-6) https://chemicalindependence.com/chemical/6153-56-6/ EPA CompTox (DSSTox): DTXSID2075003. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2075003 PubChem: 61373. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61373 EPA Chemical Data Reporting: 6153-56-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 6153-56-6. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 291711 for CAS 6153-56-6. Reporting year: 2024. https://usatrade.census.gov/